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Prep Time5 Mins
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Cook Time10-15 Mins
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Serving4
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Ready in:6 Hour
3-Ingredient Lemon Posset: The Heavenly English Classic for Your Summer Table
Discover this stunningly simple 3-ingredient lemon posset, a masterpiece that looks beautiful whether served in hollowed-out lemon skins or elegant ramekins. It is creamy, bright, and incredibly delicious—the perfect summer dessert that you can even elevate into a Lemon Posset Brûlée with a crackling caramel crust.
Today, I whipped up a true British icon: the Lemon Posset.
It is one of the simplest yet most sophisticated desserts I know. Made with just 3 pantry staples—heavy cream, sugar, and lemon—it requires only 10 minutes of active prep. The hardest part is the anticipation while it sets in the fridge.
The acidity of the lemon reacts beautifully with the proteins in the cream, creating a silky, velvety custard-like texture without the need for eggs or gelatin. On warm summer days, it is exceptionally refreshing, as the vibrant citrus notes perfectly cut through the richness of the cream.
I served this two ways: inside lemon halves (very impressive!) and in classic glass bowls. I finished the top with a sprinkle of demerara sugar and a blowtorch to transform it into a Lemon Posset Brûlée. The result is gorgeous, elegant, and yet remarkably simple—as if it came straight from a Michelin-starred kitchen.
Why This 3-Ingredient Recipe Works
The chemistry behind the magic is simple: the citric acid coagulates the cream’s proteins, thickening the mixture into a dense, smooth custard as it cools. This classic English technique delivers an elegant result with minimal effort, provided you allow for a long chill time to achieve the perfect consistency.
Common Mistakes & How to Avoid Them
- Burnt Cream: Keep the heat low and stir constantly. If you suspect the bottom is scorching, immediately pour the mixture into a clean saucepan.
- Separation: Do not boil the mixture too vigorously or for too long. A gentle simmer is all you need.
- Failure to Set: Ensure you use enough fresh lemon juice and let it chill for at least 4–6 hours.
Pro Tips for the Perfect Posset
- Freshness Matters: Always use freshly squeezed lemon juice for that sharp, clean flavor.
- Infuse with Mint: For a botanical twist, simmer a few mint leaves in the cream, then strain them out before adding the juice.
- The Crunch: For the brûlée topping, demerara sugar is superior because its larger crystals create a more substantial, golden caramel crust.
Essential Kitchen Tools & Recommendations
To achieve that professional finish, having the right equipment is key.
- Heavy-bottomed saucepan
- Fine Microplane grater (for zest)
- Ramekins or hollowed lemon skins
- Professional Culinary Blowtorch: To get that signature “crack” on your Brûlée, I highly recommend using a Reliable Culinary Torch. It provides the precision heat needed without melting the cold custard underneath.
Loved this recipe? We have plenty more where that came from! From quick bites to elegant show-stoppers, check out our Other Decadent Desserts to satisfy your sweet tooth.
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Ingredients
Ingredients
For Serving:
Nutrition
Based on a 120g serving / 2000 kcal daily diet.
- Daily Value*
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Calories 380–420 kcal19–21 %
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Total Fat 28–32 g40–46 %
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– Saturated Fat 17–20 g85–100 %
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Total Carbohydrate 32–36 g12–14 %
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– Sugars 30–34 g33–38 %
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Protein 2–3 g4–6 %
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Fiber 0,5–1 g2–4 %
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Sodium 0,05–0,1 g<1 %
Directions
Preparation of the Base: In a heavy-bottomed saucepan, combine the 370 ml (1.5 cups) of heavy cream, the 125 g (0.6 cup) of granulated sugar, and the finely grated zest of 2 fresh lemons.
Heating and Simmering: Over low heat, stir the mixture constantly until the 125 g (0.6 cup) of sugar has completely dissolved. Bring the liquid to a gentle boil. Once it starts boiling, reduce the heat and let it simmer and bubble for exactly 3–4 minutes. Stay vigilant and keep stirring to prevent scorching; if the cream begins to catch on the bottom, transfer it to a fresh pot immediately.
Adding the Citrus: Remove the saucepan from the heat and stir in the 80–100 ml (0.3 to 0.4 cup) of fresh lemon juice. You will observe the mixture thickening almost instantly as the citric acid reacts with the cream’s proteins.
Setting the Dessert: Strain the mixture through a fine-mesh sieve to ensure a silky-smooth texture, then pour the cream into your prepared lemon skins or ramekins. Allow the possets to cool to room temperature before placing them in the refrigerator for at least 4–6 hours, though leaving them overnight is ideal for the perfect set.
The Brûlée Finish: Just before you are ready to serve, sprinkle a thin, even layer of demerara sugar over the surface of each chilled custard. Use a professional culinary blowtorch to caramelize the sugar until it becomes a bubbling, golden-brown crust.
Final Garnish: Adorn each serving with fresh raspberries, blueberries, and a vibrant sprig of mint for a professional presentation.
Conclusion
This Lemon Posset is a remarkably simple yet elegant 3-ingredient dessert. It is creamy, fresh, and citrusy—the ultimate summer treat. Whether you serve it in a lemon shell or go the extra mile with a Brûlée topping, it is a guaranteed show-stopper. Try it yourself and let us know in the comments how yours turned out! Did you achieve that perfect creaminess?
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