The magic lies in a dessert that looks impressive at a dinner party but is effortless enough to make without a recipe. That’s exactly why I adore this Lemon Posset Dessert. It’s a creamy, no-bake lemon dessert with just three ingredients: heavy cream, sugar, and lemon juice.

This traditional British treat has a silky, custard-like texture and a bright, tangy flavor that’s perfect for any occasion. Whether you’re hosting guests or craving a quick lemon dessert to enjoy on a summer evening, this one is a winner.

Plus, it’s chilled to perfection, making it light, refreshing, and downright irresistible.

What’s Inside This Recipe?

Ingredients for Simple Lemon Posset

This lemon posset recipe is as simple as it gets. You only need three ingredients! Let me walk you through them, along with a few helpful tips to ensure your dessert turns out perfectly.

2 cups heavy cream (full-fat for best texture)
2/3 cup granulated sugar
1/4 cup fresh lemon juice (about 2 medium lemons)

Optional for Serving:

Fresh mint leaves (for garnish)
Fresh berries (raspberries, blueberries, strawberries)
Shortbread cookies (for dipping or serving alongside)

You’ll also need:

A medium saucepan
A whisk
Four small ramekins or dessert jars

Now that you’ve got everything ready, let’s start making this creamy lemon dessert!

How to Make Lemon Posset

This traditional lemon posset is surprisingly easy to make. If you’ve never tried it before, don’t worry—I’ll guide you through every step. You’ll be amazed at how quickly it comes together.

Step 1: Heat the cream and sugar

Pour the heavy cream and sugar into a medium saucepan. Place it over medium heat and whisk gently to combine.

Heat the mixture until it begins to simmer, whisking occasionally to make sure the sugar dissolves fully. Once it starts to bubble lightly along the edges, let it simmer gently for 2–3 minutes. Be careful not to let it boil over.

Step 2: Add the lemon juice

Remove the saucepan from the heat and set it aside for about a minute to cool slightly. Then, stir in the fresh lemon juice.

Whisk well until the mixture is smooth and thickened. The acidity of the lemon juice will naturally thicken the cream, creating that luscious, custardy texture.

Step 3: Pour into ramekins

Carefully pour the lemon posset mixture into your ramekins or dessert jars. You can use a small ladle or pour straight from the saucepan if you’re steady-handed. Leave a little room at the top for garnishes later.

Step 4: Chill until set

Place the ramekins in the refrigerator and let them chill for at least 2 hours, or until the possets are firm and fully set.

You can even make these a day ahead if you’re planning for a dinner party, just cover them with plastic wrap once they’re cold.

Step 5: Garnish and serve

When you’re ready to serve, add your favorite toppings. I love to garnish mine with a few fresh berries, a sprig of mint, or even a crumbled shortbread cookie for a bit of crunch. The bright colors and fresh flavors make this dessert look as good as it tastes!

Recipe Variations and Customization Ideas

One of the best things about this lemon posset recipe is how easy it is to customize. Let me share a few of my favorite variations and serving ideas:

Berry Lemon Posset: Add a layer of fresh berries (like raspberries or blueberries) to the bottom of the ramekins before pouring in the posset mixture. The berries soak up the tangy lemon cream and add a burst of juicy flavor.
Lemon Posset with Shortbread: Serve each posset with a buttery shortbread cookie on the side. It’s perfect for dipping and makes this dessert feel extra special.
Low-Sugar Variation: If you prefer a less sweet dessert, reduce the sugar to 1/2 cup. The posset will still set beautifully and have a more tangy, lemon-forward flavor.
Dairy-Free Option: Swap the heavy cream for a full-fat coconut cream. It won’t be quite as thick, but the coconut and lemon combination is surprisingly delicious.
Citrus twist: Swap the lemon juice for lime, orange, or grapefruit for a bright and elegant variation. Each citrus adds its own unique flavor and color.
Berry topping: Serve with a spoonful of fresh raspberries, blueberries, or strawberry compote for a refreshing contrast to the creamy base.
Make it floral: Infuse the cream with lavender, rosewater, or elderflower syrup before adding the citrus for a subtle floral aroma.
Add crunch: Top each serving with crushed shortbread cookies, toasted almonds, or a sprinkle of graham cracker crumbs just before serving.
Mini dessert idea: Pour into espresso cups, mini jars, or shot glasses for a beautiful, portion-controlled dessert perfect for entertaining.
Vegan version:
Traditional posset relies on dairy, but you can make a similar version using full-fat coconut milk and agar-agar in place of cream and acid.
Make-ahead tip:
Lemon posset is ideal for make-ahead entertaining—chill for at least 4 hours or overnight for the best texture and flavor.

Got leftovers? Spoon the posset into small jars or airtight containers and store them in the fridge for up to 3 days. They make an easy grab-and-go treat for busy days!

Frequently Asked Questions about Lemon Posset

What is lemon posset?

Lemon posset is a traditional British dessert made from heavy cream, sugar, and lemon juice. The acidity of the lemon juice thickens the cream, creating a silky, custard-like texture without any eggs or gelatin. It’s a no-bake dessert that’s simple, elegant, and full of bright, refreshing flavor.

Can I make lemon posset ahead of time?

Yes! Lemon posset is a great make-ahead dessert. You can prepare it up to 2 days in advance and store it in the refrigerator. Just wait to add any garnishes until you’re ready to serve.

Why didn’t my lemon posset set?

If your posset didn’t set properly, it could be due to one of two reasons: the cream mixture wasn’t simmered long enough, or not enough lemon juice was added. Make sure to let the cream simmer for 2–3 minutes and measure the lemon juice carefully for the best results.

Can I double the recipe?

Absolutely! This recipe doubles (or even triples) beautifully if you’re serving a crowd. Just use a larger saucepan and divide the mixture evenly among your ramekins or jars.

What’s the best way to serve lemon posset?

I love serving lemon posset with fresh berries and a sprig of mint for a pop of color. Shortbread cookies are also a great addition, especially if you’re serving this dessert at a party.

Does lemon posset need to be refrigerated?

Yes. After pouring into serving dishes, lemon posset must be refrigerated to set. Store covered in the fridge for up to 3 days.

s lemon posset gluten-free?

Yes! It’s naturally gluten-free, no flour, no thickeners, just cream, sugar, and lemon juice.

Light, luscious, and ready to impress!

I hope you’ll fall in love with this simple lemon posset as much as I have. It’s creamy, refreshing, and so easy to make with just three ingredients. Whether you’re hosting an elegant dinner party or looking for a light summer dessert, this chilled lemon treat is sure to impress.

If you try this recipe, I’d love to hear how it turned out! Leave a comment below, rate the recipe, or share your creations on social media. Don’t forget to tag me so I can see your beautiful possets!

Looking for more quick and easy dessert ideas? You’ll love my No-Bake Cheesecake Cups and Easy Rhubarb Lemon Bars.

Happy cooking,
Wanda