Orange Posset: The 3-Ingredient Dessert That Wows Every Time
Posset is one of those quietly brilliant British desserts that most people outside the UK have never heard of — and that’s a genuine shame. It’s been on restaurant menus from London to Edinburgh for decades, sitting right next to panna cotta and crème brûlée, but somehow it never made the jump to home kitchens the way it deserved. The wild part? It sets without gelatin, without a water bath, without any of the fuss — and most people have no idea why it actually works.
This orange posset comes together in about 15 minutes of active time, with just three ingredients you likely already have. You get a dessert that’s genuinely silky — somewhere between a thick cream and a soft custard — with a bright citrus edge that cuts through the richness. Make it the night before, and dinner party stress drops to zero.
Pro Tip
The mistake most first-timers make: pulling the cream off the heat the moment it bubbles, then wondering why the posset never fully sets. The science here is specific — you need the cream to boil at a genuine, rolling boil for a full 3 minutes (not a simmer, not a lazy bubble). That sustained heat breaks down the cream proteins just enough so that the citric acid in the orange juice can cause them to set when chilled. Pull it too early, and you’ll end up with a pourable cream, not a spoonable posset.
Use heavy whipping cream (double cream in the UK, thickened cream in Australia) — anything labeled ‘light’ won’t set. For the oranges, navel oranges give the cleanest flavor; blood oranges work beautifully in winter for a deeper color. Caster sugar dissolves fastest, but regular granulated sugar works fine if that’s what’s in your pantry.
Orange Posset: The 3-Ingredient Dessert That Wows Every Time
4
servings10
minutes15
minutes520
kcal4
hours4
hours25
minutesIngredients
2 cups heavy whipping cream (480 ml / double cream)
2/3 cup caster sugar (130 g)
1/2 cup freshly squeezed orange juice (120 ml, about 2 large oranges)
1 tbsp finely grated orange zest (from the same oranges)
1 pinch flaky sea salt
Directions
- Zest first, then juice. Zesting after juicing is nearly impossible — a small detail that saves a lot of frustration. You want fine zest, not big strips; use a Microplane if you have one.
- Combine cream and sugar in a medium saucepan over medium-high heat. Stir until the sugar dissolves, then bring to a full rolling boil — the kind that doesn’t calm down when you stir it. Keep your eye on it: cream climbs the sides of the pan fast and will boil over without warning.
- Boil for exactly 3 minutes, stirring occasionally. The cream will thicken slightly and smell faintly caramel-sweet — that’s the signal you’re on track. Set a timer. Three minutes feels long when you’re standing over a hot pan, but cutting it short is the number-one reason posset doesn’t set.
- Remove from heat and stir in the orange juice, zest, and salt. The mixture will hiss and bubble briefly — that reaction is exactly what you want. Pour slowly and stir as you go; the acid is starting to work on the proteins immediately.
- Pour through a fine-mesh strainer into a jug, then divide evenly between 4 glasses or ramekins. Let cool for 20 minutes at room temperature before refrigerating. Straining removes the zest bits and any skin that formed — you want the surface completely smooth.
- Refrigerate for at least 4 hours, or overnight. The posset is set when it holds a gentle wobble but doesn’t slosh. After testing three batches in my own kitchen, overnight chilling gives the cleanest, firmest texture every time.
Variations
Swap half the orange juice for freshly squeezed blood orange juice in winter — the color shifts to a deep coral that looks dramatic in clear glasses. For a sharper, more classic posset flavor, replace the orange entirely with lemon juice (use 1/3 cup / 80 ml) and a teaspoon of lemon zest; it’s the traditional version and just as easy.
Serving Suggestions
Serve with thin, crisp shortbread fingers — the buttery crunch against the cold cream is exactly the contrast this dessert needs. A handful of fresh raspberries or sliced strawberries on the side cuts through the richness with zero effort. Candied orange peel on top adds texture and makes it look like you spent far more time than you did.
FAQ
Why didn’t my posset set properly?
Almost always, the cream didn’t boil long enough — 3 minutes at a true rolling boil is non-negotiable. Also check that you used full-fat heavy cream; anything lighter won’t have enough fat content to set with the citric acid.
Can I make orange posset ahead of time?
Yes, and honestly it’s better that way. It keeps covered in the fridge for up to 3 days with no loss of texture or flavor — which makes it one of the most practical make-ahead desserts for a dinner party.
Can I use bottled orange juice instead of fresh?
You can, but the flavor is noticeably flatter — fresh juice has more citric acid and a brightness that bottled versions lack. It makes you wonder what other small swaps might push this simple dessert even further.
