Save This classic British dessert achieves its luxurious texture through the simple science of acid curdling cream. When fresh lemon juice meets hot heavy cream, the mixture transforms into an impossibly silky, pudding-like consistency that sets beautifully in the refrigerator.
The beauty of this preparation lies in its simplicity—just cream, sugar, and lemon create an elegant finale to any meal. The result is a lusciously tangy treat that balances richness with bright citrus notes.
Best served chilled in individual glasses, perhaps garnished with fresh berries or alongside crisp sparkling wine for a sophisticated finish to dinner parties.
The first time I encountered lemon posset was at a tiny dinner party in London, where the host served it in vintage teacups. I couldn't believe something this elegant required only three ingredients. Now it's my go-to when I need to impress without spending hours in the kitchen.
Last summer I served these at a garden party, and my friend Sarah actually asked for the recipe before she'd even finished her spoonful. The way the posset wobbles slightly when you set it down is part of the charm, like a little edible pudding cup from childhood but infinitely more sophisticated.
Ingredients
- Heavy cream: Double cream is traditional here, and its high butterfat content is what makes the posset set so beautifully. Don't attempt this with light cream or milk.
- Granulated sugar: The sugar needs to fully dissolve into the cream, so resist the urge to reduce it. That sweetness balances the sharp lemon.
- Fresh lemon juice: Bottled juice won't give you the same clean bright flavor. Squeeze your own, and please strain out any pulp or seeds.
- Lemon zest: This adds those fragrant citrus oils that perfume the whole dessert. Use a microplane if you have one.
Instructions
- Combine cream and sugar:
- Pour the cream into a medium saucepan and stir in the sugar. Place over medium heat, stirring gently until the sugar dissolves completely and the cream just begins to shimmer around the edges.
- Add the lemon:
- Remove from heat immediately and stir in the lemon juice and zest. You'll notice the mixture thicken slightly as the acid works its magic on the cream proteins.
- Cool and portion:
- Let the mixture sit for about 10 minutes to cool slightly, then pour into your serving glasses or ramekins. Any bubbles will settle on their own.
- Chill until set:
- Refrigerate for at least 3 hours, though overnight is even better. The posset should wobble like a firm pudding when gently shaken.
Save My grandmother used to say that patience was the secret ingredient in any dessert, and nowhere is that more true than with posset. The transformation from loose liquid to trembling custard happens silently in the cold, like kitchen alchemy.
Choosing Your Serving Vessels
Clear glasses show off that gorgeous pale yellow color and delicate wobble. I've used everything from wine goblets to vintage tea cups, and somehow the presentation always feels intentional and elegant.
Timing Your Prep
Make these the night before your dinner party and they'll be waiting patiently in the fridge. There's something deeply satisfying about having dessert already done when guests arrive.
Perfect Garnishes
A simple curl of lemon zest or a few fresh berries are all you really need. The posset itself is the star.
- Shortbread cookies provide a lovely buttery crunch contrast
- A teaspoon of crème fraîche on top adds an extra tangy creaminess
- Edible flowers make it look like something from a fancy restaurant
Save Sometimes the simplest recipes are the ones that stay with you longest. This posset has earned its permanent place in my dessert rotation.
Common Recipe Questions
- → Why does lemon juice thicken cream?
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The acidity in fresh lemon juice causes the proteins in heavy cream to coagulate, creating a thick, pudding-like texture without needing gelatin or eggs. This natural reaction produces an incredibly smooth consistency.
- → Can I make lemon posset ahead of time?
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Absolutely. In fact, lemon posset requires at least 3 hours of chilling to set properly. It can be prepared up to 2 days in advance and stored covered in the refrigerator, making it ideal for entertaining.
- → What's the difference between lemon posset and lemon curd?
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Lemon posset is a set dessert made primarily from cream, resulting in a silky, pudding-like texture. Lemon curd contains egg yolks and butter, creating a spreadable consistency more like a thick jam.
- → Can I use other citrus fruits?
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Yes, lime works beautifully and creates a lovely green posset. Blood orange or grapefruit can also be used, though you may need to adjust the sugar slightly depending on the fruit's natural sweetness.
- → Why shouldn't the cream boil?
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Boiling can cause the cream to separate or develop a grainy texture. You want to heat it just until it begins to simmer and the sugar has dissolved, then immediately remove it from the heat source.
- → What can I serve with lemon posset?
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Fresh berries like raspberries or strawberries complement the tangy lemon perfectly. A shortbread cookie, crisp biscuit, or even a sprinkling of extra lemon zest adds lovely texture and visual appeal.
