This Lemon Posset Brûlée is one of those desserts that looks elegant but is surprisingly simple to make. The creamy lemon filling is made without eggs and without baking, then chilled inside hollowed lemon halves and finished with a thin layer of caramelized sugar that cracks under a spoon.
Traditional lemon posset is based on just heavy cream, sugar, and lemon. This version adds vanilla for a softer, more rounded flavor, then takes things one step further with a brûléed sugar topping. The result is creamy underneath, crisp on top, sweet, tangy, and refreshing all at once.
It is especially good for dinner parties, summer gatherings, holidays, or anytime you want an impressive dessert that can mostly be prepared ahead.
In This Recipe
- What Is Lemon Posset?
- Why You Will Love Lemon Posset Brûlée
- Ingredients You’ll Need
- Ingredient Notes
- How to Make Lemon Posset Brûlée
- The Secret to Getting Posset to Set
- How to Brûlée the Sugar
- Expert Tips for Best Results
- Frequently Asked Questions
- Make-Ahead Tips
- Storage
- Recipe Card
What Is Lemon Posset?
Modern lemon posset is a chilled British dessert traditionally made from cream, sugar, and lemon juice.
Instead of using eggs, gelatin, or cornstarch, the dessert thickens because the acid in the lemon reacts with the proteins in the cream. After heating and chilling, the mixture sets into a smooth consistency somewhere between pudding, custard, and cheesecake filling.
This version adds vanilla and a crisp brûléed sugar topping for extra flavor and texture.
Why You Will Love This Lemon Posset Brûlée
Only a Few Ingredients
You need heavy cream, sugar, lemon, and vanilla for the posset itself.
No Eggs
There is no custard tempering and no risk of scrambling eggs.
No Baking Required
The filling sets completely in the refrigerator.
Beautiful Presentation
Serving the posset inside hollowed lemon halves makes a simple dessert look much more special.
Creamy and Refreshing
Heavy cream makes the filling rich, while fresh lemon juice keeps it bright and tangy.
Crackly Brûlée Topping
A thin caramelized sugar layer adds crunch and gives you that satisfying crème brûlée-style crack.
Ingredients
For the Lemon Posset
- 2 cups (480ml) heavy whipping cream
- ½ cup (100g) granulated sugar
- 1 tablespoon finely grated lemon zest
- ⅓ cup (80ml) fresh lemon juice
- 1 teaspoon vanilla extract
- 4–5 large lemons for serving, depending on size
For the Brûlée Topping
- 3–4 tablespoons granulated sugar, as needed