Lemon Posset
A creamy, tangy dessert that comes together quickly with just three ingredients, perfect for a refreshing finish to any meal.
A bright, silky lemon posset feels like summer in a spoon—creamy, tangy and impossibly simple. I make this when I want an elegant dessert without fuss: it takes minutes to finish on the stovetop and sets into a glossy custard that’s both refreshing and rich. It’s ideal after a heavy meal, for a casual dinner party, or when you want a make-ahead treat that still tastes like it was plated moments before serving. If you enjoy lemon-forward dishes, try pairing this with a light pasta like the 15-minute creamy lemon chicken orzo for a sunny, citrus-forward menu.
Why you’ll love this dish
Lemon posset is one of those recipes that feels indulgent but is astonishingly straightforward. It requires only three main pantry ingredients—cream, sugar, and lemon—and comes together in under 10 minutes of active time. Because the lemon juice is the setting agent (not gelatin), the texture is naturally silky and the flavor is pure, bright citrus.
- Quick: Ready to chill in about 10 minutes.
- Elegant: Looks and tastes like a restaurant dessert.
- Make-ahead friendly: Can be refrigerated for hours or made the day before.
- Kid-friendly: Creamy texture and sweet-tart balance appeals across ages.
How this recipe comes together
Quick overview of the process so you know what to expect:
- Heat cream and sugar gently until the sugar dissolves and the mixture reaches a soft boil.
- Remove from heat and stir in lemon juice and zest; the acid thickens the cream slightly.
- Cool a bit, pour into cups, and chill until set.
This simple chain of steps—heat, acid, chill—produces the custardy set that defines posset. Read on to gather ingredients and follow the full directions.
What you’ll need
- 2 cups heavy cream (also labeled heavy whipping cream)
- 3/4 cup granulated sugar
- 3/4 cup fresh lemon juice (about 3–4 lemons)
- Zest of 2 lemons
Notes and substitutions:
- For the freshest flavor, always use fresh-squeezed lemon juice. Bottled juice lacks the bright aromatic oils from zest.
- To cut richness slightly, you can use 1 part half-and-half mixed with 1 part heavy cream, but the final texture will be less luxurious.
- For a dairy-free version, try full-fat canned coconut milk (see Variations).
How to prepare it
- Combine the cream and sugar in a medium saucepan. Stir constantly over medium heat until the sugar is fully dissolved and the cream comes to a gentle boil—small, steady bubbles at the edges, not a rolling boil.
- Remove the pan from the heat immediately to avoid scorching. Stir in the fresh lemon juice and lemon zest until evenly combined. The mixture may thicken slightly as the acid works with the cream.
- Let the posset cool for 10–15 minutes at room temperature so it isn’t piping hot when you pour it.
- Divide the mixture among serving cups or ramekins. Leave a little headspace if you want to add toppings later.
- Refrigerate uncovered for 30–60 minutes, then cover and chill for at least 4 hours, or overnight, until firmly set. Serve chilled.
01Ingredients
Main Ingredients
02Method
- Preparation
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0 OF 8 DONE03Recipe notes
- 01For the freshest flavor, always use fresh-squeezed lemon juice. Add lemon juice off the heat to keep the texture smooth.
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Best ways to enjoy it
Lemon posset is versatile—here are ideas to elevate the tasting experience:
- Serve in small glass cups with a spoonful of mixed berry compote or fresh raspberries on top for color and texture contrast.
- Sprinkle toasted almond slivers, crushed amaretti cookies, or shortbread crumbs for crunch.
- For a summer party, plate possets with a small salad of mint and grapefruit segments.
- Pair with a cold citrus cocktail or mocktail—something like a Blue Hawaiian Lemonade complements the bright lemon notes beautifully.
- For a restaurant-style presentation, pipe a tiny rosette of whipped cream and finish with microgreens or candied lemon peel.
Keeping leftovers fresh
Refrigerator: Store covered in the fridge for up to 3–4 days. Use airtight lids or plastic wrap directly touching the surface to prevent a skin from forming.
Freezing: Posset doesn’t freeze and thaw well because the dairy structure changes; freezing can make it grainy. If you must freeze, transfer to freezer-safe containers and thaw slowly in the fridge—expect some texture change.
Food safety: Because this is cream-based, keep it refrigerated at all times and discard if left at room temperature for more than 2 hours.
Creative twists
- Berry-Lemon Posset: Fold a few tablespoons of raspberry purée into each cup before chilling or top with compote.
- Vanilla Lemon Posset: Add half a vanilla bean (scraped) or 1 tsp vanilla extract when heating the cream for a rounder flavor.
- Lime or Orange Posset: Swap lemon juice and zest for lime or orange for a different citrus profile.
- Coconut Posset (dairy-free): Use full-fat canned coconut milk, reduce sugar a touch, and add lime zest to balance. Note texture will be similar but slightly looser.
- Citrus variation: Stir 1-2 tbsp of lemon syrup or orange syrup into the cooled mixture before pouring to add aromatic depth.
Your questions answered
How long does lemon posset take to set?
A: Allow at least 4 hours in the refrigerator. For best texture, chill overnight.
Can I use bottled lemon juice?
A: Fresh lemon juice gives the best flavor and aroma. Bottled juice will work for acidity but lacks brightness and fresh citrus oils from zest.
Why didn’t my posset set?
A: The most common reasons are not boiling the cream long enough to dissolve sugar and slightly concentrate it, or using too little lemon juice. Make sure you reach a gentle boil and measure lemon juice accurately.
Can I make posset ahead?
A: Yes—make it up to 48 hours in advance and keep covered in the fridge. Add crunchy toppings right before serving.
Is lemon posset the same as panna cotta?
A: They’re similar in texture, but panna cotta uses gelatin to set milk/cream, while posset uses citrus acid to thicken cream chemically. The flavors and techniques differ slightly.
Conclusion
Lemon posset is a foolproof way to finish a meal with minimal effort and maximum flavor—silky cream brightened by lemon that’s elegant and easy to make. For a video-guided version and slightly different technique, see this detailed recipe with visual steps from Natasha’s Kitchen’s Lemon Posset. You might also like my Easy Lemon Mousse Recipe.
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