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Silky, velvety, and utterly luxurious, lemon posset might just be the most elegant yet effortless dessert you’ll ever make. This cloud-like creation strikes the perfect balance between rich creaminess and bright, zesty lemon freshness, creating a dessert that somehow manages to be both indulgent and light at the same time. The first spoonful reveals a magically smooth texture – somewhere between a custard and mousse – yet achieved without eggs, gelatin, or any complicated techniques. It’s pure dessert alchemy that transforms just three humble ingredients into something truly extraordinary.
Did you know that lemon posset has been delighting palates for centuries? This isn’t some trendy new dessert – it’s a historical treasure with roots stretching back to medieval Britain. In the 15th century (possibly even earlier in the 14th), posset began its culinary journey as a warm, restorative drink where milk was curdled with alcohol such as ale or fortified wine. It was so significant in British culture that Shakespeare himself mentioned possets multiple times in his plays, including a famous reference in Macbeth where Lady Macbeth drugs the guards’ possets!
What makes modern lemon posset truly special is its remarkable simplicity paired with its sophisticated result. In our hectic lives, finding desserts that deliver maximum impact with minimum effort is like discovering culinary gold. This recipe requires just minutes of active preparation time, making it perfect for both impromptu dinner parties and planned special occasions. The posset needs to chill for a few hours, but that hands-off time allows you to focus on other dishes or simply relax while dessert takes care of itself.
Unlike our popular key lime pie recipe, which requires a baked crust and multiple components, lemon posset delivers similar citrusy satisfaction with significantly less effort. The clean, pure flavors make it family-friendly, while the elegant presentation makes it suitable for the most sophisticated gatherings. Whether served in delicate ramekins, beautiful glassware, or even hollowed-out lemon halves for a dramatic presentation, this dessert never fails to impress.
So grab your heavy cream, lemons, and sugar – those three magical ingredients are all that stand between you and dessert perfection. Let me show you how to create this creamy, tangy miracle that will have everyone requesting the recipe before they’ve even finished their last spoonful!
What is Lemon Posset?
Ever wondered what on earth a “posset” is? Does it sound like something you might find in a medieval apothecary or perhaps a character from a Dr. Seuss book? You’re not alone! This delightfully named dessert often raises eyebrows and curious smiles when mentioned at dinner parties. But behind that quirky name lies a fascinating culinary history and an incredibly delicious treat!
In modern terms, lemon posset is essentially the world’s easiest custard-like dessert – a silky, spoonable blend of cream thickened naturally with lemon juice to create a texture that’s somehow both substantial and ethereal.
But to truly appreciate this wonder, we need to travel back in time a few centuries! You see, posset didn’t begin its life as the elegant dessert we know today. In medieval and Renaissance Britain, it was a warm, fortifying drink where hot milk was curdled with wine or ale. Imagine the surprise on your guests’ faces when you casually mention they’re enjoying a dessert that Shakespeare referenced multiple times in his writings – including when Lady Macbeth used drugged possets to knock out Duncan’s guards before the infamous murder!
The evolution from medicinal drink to luxurious dessert speaks to posset’s incredible appeal. Over centuries, it transformed from a bedtime drink into the refined, chilled cream dessert we adore today. I often joke with my cooking classes that posset proves the adage that “the way to a man’s heart is through his stomach” must have been invented by someone who had just served this dessert – it’s simply irresistible!
What’s particularly charming is how this historical dessert used to be served in special “posset cups” with little spouts on one side. As the drink cooled, a creamy skin would form on top (like on custard), and the spout allowed people to drink the liquid while scooping up the creamy top with a spoon. While we’ve modernized the serving method, the delicious essence remains unchanged.
Ready to try your hand at a dessert that’s been winning hearts for centuries? Let’s recreate this little piece of culinary history in your kitchen today – I promise it’s easier than pronouncing “Shakespeare” with a mouth full of cream!
Why You’ll Love This Lemon Posset

The crowning glory of lemon posset is undoubtedly its extraordinary texture. Unlike many creamy desserts that require tempering eggs, blooming gelatin, or precise temperature control, lemon posset achieves its velvety, spoonable consistency through simple chemistry. The acidic lemon juice works magic on the cream molecules, creating a naturally perfect set that’s simultaneously rich and light, silky and substantial. Each spoonful melts on your tongue in a way that feels luxurious and refined, belying the minimal effort required to create it.
From a practical standpoint, lemon posset might be the most cost-effective gourmet dessert you’ll ever make. With just three ingredients – heavy cream, sugar, and lemons – it transforms humble components into something that could easily command $12-15 per serving at a high-end restaurant. A single batch serving 4-6 people costs roughly $2.20 total, making it approximately 75% less expensive than purchasing similar quality desserts. This remarkable economy makes it perfect for entertaining on a budget without sacrificing an ounce of elegance or flavor.
The clean, bright flavor profile of classic lemon posset is perfection in its purest form, but this dessert truly shines as a canvas for creative garnishes and toppings. A simple sprinkle of fresh berries adds vibrant color and complementary flavor, while a light dusting of crushed shortbread or ginger cookies introduces delightful textural contrast. For special occasions, consider adding a whisper of edible gold leaf or a candied lemon slice for visual drama. Fresh herbs like mint or basil can introduce unexpected aromatic notes, while a drizzle of fruit coulis creates a stunning visual presentation.
When compared to our popular lemon mousse recipe, posset offers similar citrus brightness but with significantly less preparation time and technique required. While mousse demands careful folding of whipped cream and sometimes temperamental egg whites, posset simply requires basic boiling and stirring – perfect for beginning cooks or anyone short on time.
I encourage you to try this remarkable dessert at your next gathering – or perhaps just for yourself on a Tuesday evening when you deserve something special. The ease-to-impression ratio is unmatched in the dessert world, and I guarantee it will earn a permanent place in your recipe collection after just one taste!
How to Make this Lemon Posset
Quick Overview
Lemon posset is the epitome of culinary simplicity yielding extraordinary results. This elegant, silky dessert requires just three ingredients and about 10 minutes of active preparation time, followed by a few hours of chilling. The magic lies in the chemical reaction between the acidic lemon juice and the fat in the cream, which naturally thickens into a luxurious, spoonable consistency without any added thickeners or complicated techniques. The resulting texture falls somewhere between a custard and a mousse – substantial enough to hold its shape but delicate enough to melt on your tongue. From start to finish (excluding chilling time), you’ll spend just 10 minutes creating a dessert that tastes like it came from a professional pastry kitchen.
Key Ingredients for the Lemon Posset Recipe
Ingredient | Quantity | Notes |
Heavy Cream (Double Cream) | 300ml | Must be full-fat for proper setting7 |
Caster Sugar | 75g | Fine sugar dissolves quickly7 |
Lemon Juice | 3-5 tablespoons (1-2 lemons) | Fresh is essential for best flavor7 |
Lemon Zest (optional) | From 1 lemon | Adds extra lemon flavor if desired |
Optional Garnishes:
- Fresh berries
- Grated lemon zest
- Crushed nuts
- Crumbled biscuits (shortbread or ginger cookies work well)7
Step-by-step instructions
- Heat the cream and sugar: Pour the heavy cream into a medium saucepan and add the caster sugar. Place over medium heat and stir gently until the sugar completely dissolves. This step is crucial for ensuring a smooth texture without any graininess in your finished posset7.
- Bring to a controlled boil: Once the sugar has dissolved, bring the mixture to a boil. Be attentive during this stage, as the cream can quickly boil over. Allow the cream to boil for exactly 5 minutes, stirring occasionally to prevent scorching. This precise cooking time is essential for achieving the perfect set – too short and the posset may remain too liquid, too long and it might become too firm.
- Add the lemon juice: Remove the saucepan from heat and immediately add the lemon juice. Begin with 3 tablespoons and stir well – you’ll notice the mixture beginning to thicken slightly. Taste and add more lemon juice if you prefer a tangier flavor. The acid in the lemon juice is what causes the cream to thicken naturally.
- Rest briefly: Allow the mixture to sit undisturbed for about 20 minutes at room temperature. During this resting period, the chemical reaction between the lemon acid and the cream continues, and you’ll notice further thickening.
- Strain the mixture: For the smoothest, most luxurious texture, strain the posset through a fine-mesh sieve into a measuring cup or bowl with a pouring spout. This removes any inadvertent lumps or bits of lemon pulp that might have found their way into the mixture.
- Pour into serving vessels: Carefully pour the strained posset into your chosen serving containers – ramekins, small glasses, teacups, or even hollowed-out lemon halves for a dramatic presentation. If using lemon halves, be sure to remove all pith to prevent bitterness.
- Remove air bubbles: Gently tap the filled containers against the counter a few times to release any air bubbles that might have formed during pouring.
- Chill thoroughly: Place the possets in the refrigerator, uncovered, for at least 3 hours or ideally overnight. The uncovered chilling prevents condensation from dripping onto the surface of your possets.
- Garnish before serving: Just before serving, add your chosen garnishes. Fresh berries, a light dusting of lemon zest, or a small shortbread cookie make perfect accompaniments that complement without overwhelming the delicate lemon flavor.
What to Serve a Lemon Posset With
Lemon posset’s clean, bright flavors make it an incredibly versatile dessert that pairs beautifully with a variety of accompaniments. For the perfect textural contrast, serve your posset with crisp, buttery shortbread cookies on the side. The delicate vanilla notes and crumbly texture of the cookies complement the smooth, creamy posset wonderfully – plus, they provide a lovely vehicle for scooping up every last bit of the dessert.
Fresh berries are perhaps the most natural partner for lemon posset. The vibrant colors of raspberries, blueberries, or sliced strawberries not only create a stunning visual presentation but also provide a juicy, sweet-tart counterpoint to the rich cream. For special occasions, consider macerating the berries with a touch of sugar and a splash of liqueur like Grand Marnier or limoncello to enhance their natural flavors.
For a more substantial dessert course, pair individual possets with a selection of complementary petit fours or small confections. Candied lemon peel, white chocolate truffles, or tiny meringues create an elegant dessert plate that feels special enough for celebrations while still allowing the posset to shine as the star.
On the beverage front, lemon posset pairs beautifully with both hot and cold accompaniments. A cup of Earl Grey tea makes a wonderful companion, its bergamot notes harmonizing with the lemon in the dessert. For evening gatherings, consider serving posset with small glasses of limoncello or a light dessert wine such as Moscato d’Asti, whose gentle sweetness and subtle effervescence cleanse the palate between bites of the rich cream.
For a beautiful seasonal presentation, especially in winter months, serve your posset alongside a small glass of hot mulled cider. The warm spices provide an appealing contrast to the cool, creamy dessert, creating a multisensory experience that’s particularly welcome on chilly evenings.
Top Tips for Perfecting this Lemon Posset
The key to achieving the ideal lemon posset texture lies in the proper boiling of the cream. Ensure you bring the cream to a full, rolling boil and maintain it for exactly 5 minutes, stirring occasionally to prevent scorching. This precise timing allows the proteins in the cream to denature just enough to create that perfect set when the lemon juice is added. Too little boiling time results in a runny posset, while too much can make it overly firm.
When working with lemons, always opt for fresh fruit rather than bottled juice. The bright, complex flavor of freshly squeezed lemons creates a significantly more vibrant dessert. For the most juice yield, bring your lemons to room temperature and roll them firmly on the counter before cutting and squeezing. If you’re adding zest, be extremely careful to avoid the bitter white pith – use a microplane grater for the finest, most aromatic zest without bitterness.
For those concerned about potential curdling, temperature control is your friend. Allow the cream mixture to cool slightly (about 2-3 minutes) after boiling before adding the lemon juice. Then add the juice in a slow, steady stream while stirring constantly rather than all at once. This gradual introduction helps create the perfect chemical reaction without unwanted separation.
If you’re experiencing issues with the posset not setting properly, the most common culprit is the fat content of your cream. This recipe requires heavy cream (also called double cream in some countries) with at least 36% fat content. Light cream, half-and-half, or whipping cream simply won’t have enough fat to achieve the proper set.
To create a stunning visual presentation, consider layering the posset with complementary flavors. After pouring half the posset into serving glasses, allow it to set for an hour. then top with a thin layer of fruit coulis or lemon curd before adding the remaining posset. Once fully set, this creates a beautiful striped effect that will impress your guests.
For flavor variations, don’t limit yourself to lemons alone. Try substituting part or all of the lemon juice with lime for a different citrus profile, or experiment with blood oranges when in season for a gorgeous pink-hued posset. You can also infuse the cream with subtle flavors before boiling – vanilla bean, lavender, or a hint of ginger all complement the lemon beautifully.
Finally, for special occasions, consider serving the posset in hollowed-out lemon halves for a dramatic presentation. To prevent bitterness from the pith, scrape the lemon halves thoroughly and briefly immerse them in recently boiled water before filling with the posset mixture.
Storing and Reheating Tips
Lemon posset is an ideal make-ahead dessert that benefits from being prepared in advance. For optimal freshness and texture, possets can be stored in the refrigerator for up to 3 days. The key to successful storage is proper covering once the posset has fully set. After the initial uncovered chilling period (which prevents condensation from forming on the surface), cover each posset with plastic wrap pressed directly onto the surface to prevent a skin from forming and to block any refrigerator odors from being absorbed.
If preparing possets for a special occasion, you can make them up to 24 hours in advance for the best texture and flavor. Many chefs prefer overnight chilling as it allows the lemon flavor to develop fully and meld with the cream. Just add any fresh garnishes like berries or mint leaves immediately before serving rather than during storage.
For those serving posset in hollowed-out lemon halves, be aware that extended contact with the lemon rind can increase bitterness over time. These presentations are best prepared no more than 2-3 hours before serving. Alternatively, prepare the posset in advance and fill the lemon halves just before serving for the most appealing flavor balance.
Unlike many desserts, lemon posset does not freeze well due to its high fat content and delicate set. The freezing process disrupts the carefully achieved texture, resulting in separation upon thawing. This dessert is best enjoyed fresh within its refrigerator storage window.
It’s important to note that lemon posset, being a chilled cream dessert, is not intended to be reheated. Applying heat would break down the delicate structure created by the interaction between the acidic lemon juice and the cream, resulting in separation. Should your posset become too cold directly from the refrigerator, simply allow it to sit at room temperature for 10-15 minutes before serving to take the chill off and allow the flavors to fully bloom.
For service at outdoor summer gatherings, keep possets chilled until the last possible moment and consider placing the serving dishes in a larger bowl of ice to maintain proper temperature during extended serving periods. The ideal serving temperature allows the creamy texture to shine while preserving the refreshing quality that makes lemon posset such a beloved dessert, particularly during warmer weather.
Frequently Asked Questions About Lemon Posset
Why didn’t my posset set properly?
The most common reason for setting issues is insufficient boiling time. Ensure you maintain a rolling boil for the full 5 minutes to allow the proteins in the cream to denature properly. Additionally, check that you’re using heavy cream with at least 36% fat content – lower-fat alternatives won’t set correctly. Finally, different lemons vary in acidity; if your posset seems too soft, try adding a teaspoon of lemon juice.
Can I make lemon posset dairy-free?
Traditional lemon posset relies on the specific interaction between cream fat and acid, making it challenging to create an authentic dairy-free version. However, some cooks have had success using full-fat coconut cream as a substitute. The texture will be somewhat different, but the flavor combination works well. Be prepared to experiment with setting times and lemon quantities to achieve your desired consistency.
How far in advance can I make lemon posset?
Lemon posset can be prepared up to 3 days in advance, though 24 hours is ideal for optimal texture and flavor. Once the posset has set completely, cover with plastic wrap pressed directly onto the surface to prevent a skin from forming. Add any fresh garnishes just before serving.
Can I use bottled lemon juice instead of fresh?
While technically possible, bottled lemon juice lacks the bright, complex flavor of fresh lemons and often contains preservatives that can affect the dessert’s taste. For the best results, always use freshly squeezed lemon juice. The small amount of extra effort yields significantly superior results.
Why is my posset bitter?
Bitterness usually indicates that some of the white pith from the lemon has made its way into your dessert. When zesting lemons, be careful to remove only the colored part of the peel. If serving in lemon halves, thoroughly scrape away all pith and consider briefly immersing the hollowed halves in hot water to reduce bitterness before filling with posset.
Can I add other flavors to my posset?
Absolutely! While traditional lemon posset is perfect in its simplicity, you can experiment with various flavor additions. Try infusing the cream with vanilla, lavender, star anise, or ginger before boiling. You can also substitute part or all of the lemon juice with other citrus like lime or blood orange for interesting variations.
Why do I need to boil the cream?
Boiling the cream is essential to the science of posset-making. The heat causes the proteins in the cream to denature slightly, which then allows them to interact with the acid in the lemon juice to create the perfect set. Skipping or shortening this step will result in a runny dessert rather than the silky, spoonable texture that makes posset so special.
By mastering this simple yet sophisticated dessert, you’re connecting with centuries of culinary tradition while creating something that feels thoroughly modern in its elegant simplicity. Whether served at a dinner party or enjoyed as a special weeknight treat, lemon posset proves that sometimes the most straightforward recipes yield the most extraordinary results.
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