Bright, creamy, and impossibly simple, this Lemon Posset is the kind of dessert you make when you want something elegant without fuss. It’s a three-ingredient magic trick that sets with just cream, sugar, and lemon juice.
Make it in hollowed lemon shells for a show-stopping presentation, or keep it cozy in ramekins for weeknight treats. Either way, it’s silky, tangy, and bright.
If you love citrus desserts, you might also enjoy a zesty dump cake for easy entertaining. Try a lemon cream cheese dump cake for a different easy lemon finish.
Why You’ll Love This Lemon Posset
– Ultra-simple: only a few pantry ingredients and minimal hands-on time.
– Luxurious texture: silky, spoonable custard without eggs or complex techniques.
– Bright citrus flavor that balances rich cream.
– Versatile presentation: serve in hollowed lemons or ramekins for casual or formal settings.
– Make-ahead friendly: sets in the fridge and keeps well for several days.
– Crowd-pleaser for dinner parties and holiday menus.
This Lemon Posset tastes like pure lemon curd folded into a cloud of cream. The texture is dense yet silky, a spoonable pillow that melts on the tongue and finishes with a clean, bright lemon zip.
“Five stars — I served this in lemon cups for a dinner party and everyone wanted the recipe. It was easy, elegant, and the texture was heavenly.” — A happy reader
Key Ingredients for Lemon Posset
– Heavy Cream: Heavy cream is the structural heart of Lemon Posset. Use full-fat cream (36% butterfat or higher) for the right mouthfeel and to ensure the mixture thickens properly. Lower-fat creams or half-and-half won’t set correctly and will produce a runny texture. Look for fresh cream with no additives for the cleanest flavor.
– Granulated White Sugar: Sugar does more than sweeten — it raises the boiling point and helps the cream stabilize as it cools. Use fine granulated sugar so it dissolves quickly during the brief cook. Substituting with superfine or caster sugar speeds dissolving; using brown sugar will change flavor and color.
– Fresh Lemon Juice: Freshly squeezed lemon juice provides the acid that “cooks” and thickens the cream. Bottled lemon juice lacks brightness and can introduce metallic or flat notes. Use ripe, juicier lemons and strain seeds; if your lemons are small, you may need a few extra to reach the required juice.
– Lemon Zest: Zest adds aromatic oils that punch up the citrus aroma without extra acidity. Microplane zest right before using to preserve volatile oils. If you skip zest, the posset will still be tasty but less fragrant.
Full Ingredient List for Lemon Posset
– 2 cups Heavy Cream
– ¾ cup Granulated White Sugar
– Juice of 2 Ripe Lemons (about 2–3 tablespoons)
– Lemon Zest, to taste (and extra for garnish)
– 4 Lemons, halved and hulled (for serving cups) — or small ramekins
Step-by-Step Instructions for Lemon Posset
Step 1: Hollow and prepare lemon cups
Hollow out the pulp of the 4 extra lemons to use as serving dishes, cutting the lemons in half and scooping the flesh carefully without puncturing the peel. You can reserve the lemon pulp for smoothies or cocktails, or chop it into a syrup for later use. If you prefer, use small ramekins instead for a simpler presentation.
Pro Tip: The lemon shells should sit flat and look intact with bright yellow rinds; if they wobble, trim a thin slice off the base to level them.
Step 2: Combine cream and sugar
Combine 2 cups heavy cream and ¾ cup granulated sugar in a small saucepan. Stir gently to dissolve the sugar, then bring to a gentle boil over medium heat. Once it reaches a low boil, cook for 2 to 3 minutes, stirring frequently to prevent scorching and to allow the cream to reduce ever so slightly.
Pro Tip: The cream should steam and form small bubbles at the edges; it should smell rich and slightly caramelized, but not burned.
Step 3: Add the lemon juice
Remove the saucepan from heat and stir in the juice of 2 ripe lemons, along with a little lemon zest if you like. The acid will react with the hot cream and begin to thicken the mixture immediately. Stir until evenly combined and the mixture looks smooth.
Pro Tip: The mixture will look glossy and slightly thickened; you may see tiny fat globules coalesce — that’s normal if you stirred briskly.
Step 4: Pour and chill
Pour the lemon cream mixture into the hulled lemon cups or small ramekins, filling to the top. Transfer to the refrigerator and chill until set, about 5 hours. After a couple of hours you should see the mixture start to firm up around the edges. For other lemon shell ideas, check this lemon pie variation for inspiration. Try baby lemon impossible pies for an alternate presentation idea.
Pro Tip: The set should be custard-like and cleanly hold a spoonful; after 5 hours it should be firm but yielding.
Step 5: Finish and serve
When set, add finishing touches like fresh mint, lavender, or extra lemon zest on top. Serve chilled straight from the lemon shells or ramekins. Enjoy immediately for the best texture.
Pro Tip: The top should glisten slightly and have a fine, smooth surface; a dusting of zest brightens the color and aroma.
Expert Tips for Lemon Posset
– Temperature tip: Bring cream to a gentle boil and maintain small bubbles for 2–3 minutes; this controlled heat is what changes the protein structure and helps it set.
– Cooling tip: Chill uncovered until the surface firms, then cover lightly to avoid condensation forming on the top.
– Texture troubleshooting: If your posset is too soft, extend chilling time; if it’s grainy, it may have overheated — next time watch for bubbling and stir constantly.
– Equipment tip: Use a heavy-bottomed saucepan to distribute heat evenly and prevent hot spots that scorch the cream.
– Zest tip: Add most zest at the end or as a garnish to preserve volatile oils; adding too early mutes aroma.
– Acid balance: Use fresh juice only — bottled lemon juice can yield a dull flavor and affect setting.
– Serving tip: Hollow lemon shells add drama and fragrance, but ramekins are more stable for shipping or travel.
– Common mistakes: Don’t walk away while boiling; sugar can burn quickly. Also, don’t over-squeeze pulpy lemons into the mixture — seeds and excess pith add bitterness.
Storage & Freezing for Lemon Posset
Refrigerator: Store Lemon Posset covered in airtight containers or sealed with plastic wrap for up to 4 days. If using lemon shells, transfer possets to a shallow airtight container before chilling to protect them; lemon shells can dry out after long storage.
Freezer: Lemon Posset is not ideal for long-term freezing because the texture may become grainy after thawing. If you must freeze, spoon into freezer-safe containers and freeze for up to 1 month. Expect some separation on thawing; whisk gently to reincorporate before serving.
Thawing: Thaw overnight in the refrigerator; avoid microwaving or reheating, as heat will break the emulsion and change texture.
Reheating: This dessert is best served cold. If you prefer a slightly warmer spoonful, allow the chilled posset to sit at room temperature for 10–15 minutes before serving.
Variations & Substitutions for Lemon Posset
– Orange Posset: Swap lemon juice and zest for fresh orange juice and orange zest. The result is sweeter and more rounded, with a mellower citrus aroma that pairs well with candied peel or toasted almonds.
– Lavender-Lemon Posset: Steep 1 teaspoon dried culinary lavender in the hot cream for 5 minutes before straining and adding sugar. You’ll get a floral undertone that complements the lemon without overpowering it.
– Berry-Topped Posset: Keep the classic lemon posset but serve with a macerated berry compote spooned over the top. The acidity of the berries adds texture and a tart-sweet counterpoint. For a savory pairing idea with citrus, explore a lemony seafood sauce. Try baked cod in coconut-lemon cream sauce as inspiration for dinner pairings.
– Gin or Limoncello Boost: Stir 1–2 teaspoons of Limoncello or gin into the cooled posset before chilling for a boozy adult version. Alcohol changes the set slightly and will produce a softer texture, so don’t add more than a tablespoon.
Frequently Asked Questions About Lemon Posset
Q: How long does Lemon Posset take to set?
A: Expect about 4–6 hours in the refrigerator for a proper set, depending on container size and chill temperature. Small ramekins may set faster; larger lemon shells can take the full 5 hours.
Q: Can I make Lemon Posset without cream?
A: No — heavy cream is essential because the milk fat and proteins react when heated and acidified to create the set. Non-dairy milks and low-fat substitutes generally won’t produce the same stable custard.
Q: Why did my Lemon Posset separate or look grainy?
A: Overheating the cream or boiling too vigorously can break the emulsion and cause graininess. Use a moderate boil and frequent stirring; if separation occurs, a short whisk while cooling may help, but texture may still be compromised.
Q: Can I prepare Lemon Posset ahead for a party?
A: Yes — make it up to 2 days in advance for peak freshness. Keep it chilled and add fresh garnishes just before serving for best aroma and presentation. For additional lemon dessert ideas, check similar recipes like lemon bars. See a lemon bar variation for other citrus dessert inspiration.
Q: Are hollowed lemon shells practical for serving or just decorative?
A: They’re charming and aromatic but less stable for transport. For traveling or stacking in a fridge, use ramekins and transfer to lemon shells right before serving.
Final Thoughts on Lemon Posset
This Lemon Posset is proof that a few high-quality ingredients can deliver a memorable dessert with minimal effort. If you enjoyed this recipe, please leave a star rating in the recipe card below or pin it to Pinterest to save for later.
For more recipe ideas and other takes on lemon posset, see this classic three-ingredient version from Natasha’s Kitchen. If you want video guidance, this bright and simple version on What A Girl Eats walks you through the steps. For a different technique and community-tested notes, consult the recipe on Food52.
Lemon Posset
Ingredients
Main Ingredients
- 2 cups Heavy Cream Use full-fat cream (36% butterfat or higher) for the right mouthfeel.
- ¾ cup Granulated White Sugar Fine sugar helps dissolve quickly during cooking.
- Juice of 2 lemons Fresh Lemon Juice Use ripe, juicy lemons and strain seeds. About 2–3 tablespoons.
- to taste Lemon Zest Microplane right before using for maximum flavor.
For Serving
- 4 Lemons, halved and hulled For serving cups — or use small ramekins.
Instructions
Preparation
- Hollow out the pulp of the 4 extra lemons to use as serving dishes. Reserve the lemon pulp for smoothies or cocktails if desired.
- Cut the lemons in half and scoop the flesh carefully without puncturing the peel. Trim a thin slice off the base if needed.
Cooking
- In a small saucepan, combine 2 cups heavy cream and ¾ cup granulated sugar. Stir gently to dissolve the sugar.
- Bring the mixture to a gentle boil over medium heat, cooking for 2 to 3 minutes while stirring frequently.
- Remove from heat, then stir in the juice of 2 ripe lemons and a little lemon zest.
Chilling
- Pour the lemon cream mixture into the hulled lemon cups or small ramekins, filling to the top. Transfer to the refrigerator and chill until set, about 5 hours.
Serving
- When set, add finishing touches like fresh mint, lavender, or extra lemon zest on top. Serve chilled.
