Lemon Posset

Lemon posset is a classic British dessert made with just heavy cream, sugar, and fresh lemon juice, yet it sets into a silky, custard-like texture without eggs or gelatin. The acidity of the lemon naturally thickens the cream, creating a rich but refreshing dessert with bright citrus flavor. Traditionally served chilled in small glasses or hollowed lemon shells, lemon posset is a show stopping dessert. This easy lemon posset recipe is perfect for make-ahead entertaining and requires no baking.

This is one of the EASIEST DESSERTS ever but looks so sophisticated.

What Is Lemon Posset?

Lemon posset is a classic British dessert made from just three ingredients: heavy cream, sugar, and fresh lemon juice. Despite its simplicity, it sets into a smooth, custard-like dessert without the use of eggs, gelatin, cornstarch, or baking. The secret lies in the chemistry: the acidity of the lemon juice causes the proteins in the cream to thicken naturally, creating a softly set, spoonable texture once chilled.

Traditionally served cold, lemon posset can be presented in small glasses, ramekins, or — most strikingly — in hollowed lemon shells, which double as both serving vessel and flavor cue. It’s an elegant, make-ahead dessert that feels refined while requiring very little hands-on time.

What Does Lemon Posset Taste Like?

The texture of lemon posset sits somewhere between a silky panna cotta and a loose custard, melting instantly on the tongue. The flavor is pure lemon — not cloyingly sweet, not puckeringly tart — just clean, fragrant citrus balanced by the richness of cream. Each bite feels refreshing yet indulgent, making it the rare dessert that satisfies after a heavy meal.

The Flavor: The combination of rich cream and the bright zing of lemon creates a balanced and refreshing dessert.

Simplicity: With only four ingredients, lemon posset is a beginner-friendly recipe that doesn’t require special techniques or equipment.

Elegance: Despite its simplicity, lemon posset has a luxurious texture and taste, making it perfect for dinner parties or special occasions. It is extra special when served in fresh lemon halves.

Minimal Effort: No baking or extensive preparation is needed. It just takes a bit of mixing, heating, and chilling. Lemon Posset is such a quick and easy make-ahead dessert.

Ingredients:

What ingredients do you need to make homemade lemon posset? You only need 5 ingredients and it is so simple to make.

• Fresh Lemon Juice
• Sugar
• Heavy Cream
• Lemon Zest
• Vanilla Extract: This is optional to add to the lemon posset.

How to make Lemon Posset:

Zest the Lemons: This is an important step because it is so much easier to zest a lemon before juicing.

Slice the Lemons: Scoop out the flesh and place in a bowl. See below for tips on how to remove the flesh of the lemon. Smash the lemons to squeeze out the juice from the pulp. Set aside prepared lemon halves.

Heat the Cream and Sugar: In a medium saucepan, combine the heavy cream and granulated sugar. Stir over medium heat until the sugar is completely dissolved and the mixture comes to a gentle boil. Allow it to boil for 3-4 minutes, stirring occasionally to prevent scorching.

Add the Lemon Juice: Remove the saucepan from the heat and let it cool slightly. Once it has slightly cooled, stir in the fresh lemon juice. You’ll notice the mixture starts to thicken almost immediately due to the acid in the lemon juice reacting with the cream.

Optional — Strain and Pour: To ensure a smooth texture, strain the mixture through a fine-mesh sieve into a bowl or directly into fresh lemons or serving glasses. This step helps remove any bits of lemon pulp or zest that might have slipped in.

Chill: Divide the mixture among serving glasses, ramekins, or fresh lemon halves and let them cool to room temperature. Once cooled, cover and refrigerate for at least 3 hours, or until set.

Serve: Garnish with a bit of lemon zest or a fresh berry on top, if desired, and serve chilled.

How to hollow lemons cleanly:

Here is a step-by-step for removing the insides of lemons for posset.

1. Slice off the top third of each lemon
   Use a sharp knife and keep the cut clean — jagged edges crack more easily.
2. Loosen the flesh
   Run a small paring knife around the inside edge, keeping the blade against the pith.
3. Cut the segments free
   Carefully slide the knife between membranes, cutting toward the center.
4. Scoop gently
   Use a spoon to lift out the segments and juice. Work slowly. Don’t scrape aggressively — the pith is fragile
5. Strain and save the juice
   You’ll use it in the recipe, and it ensures nothing is wasted.
6. Rinse and dry
   A quick rinse removes lingering pulp. Pat dry and place cut-side up in a muffin tin to keep them stable while filling.

Top Tips:

• Roll lemons on the counter before juicing to get the most juice from the lemons.
• Zest the lemons before juicing. I suggest using a zester if you have one.
• Let the sugar and heavy cream mixture cool slightly before adding the lemon juice so it doesn’t curdle.
• Use heavy cream only. Half-and-half will not set.
• Add lemon juice off heat as it prevents curdling and preserves fresh lemon flavor.
• Chill long enough as the texture improves as it rests.

Since this is such a simple dessert, you can add a garnish to make this lemon dessert even more stunning. I love to add fresh lemon zest or candied lemon peel but you can add fresh berries or whipped cream as well.

• Fresh Mint
• Fresh Lemon Zest or Candied Lemon Peel
• Whipped Cream
• White Chocolate Shavings
• Graham Cracker Crumbs
• Raspberries, Blackberries, Strawberries, or Blueberries

More Lemon Desserts:

If you love lemon desserts, you will love this lemon cake, lemon pie, lemon bars, and lemon cookie recipes…

Lemon Bars

Lemon Cake

Lemon Cream Pie

Levain Bakery Lemon Cookies