If you’ve never had lemon posset before, you’re in for a treat. It’s a classic English dessert that’s creamy, tangy, and honestly one of the easiest things you’ll ever make.

The best part is that this lemon posset is naturally gluten free, with no flour, no thickeners, and no fuss. Just three main ingredients and a little patience while it sets in the fridge.

All you need is heavy cream, sugar, and fresh lemon juice. The acid from the lemon does all the work and thickens the cream into this silky, pudding-like texture.

You can top it with fresh berries or enjoy it plain. Either way, it’s a simple and elegant dessert that works for pretty much any occasion.

If you’re looking for a gluten free dessert that actually impresses people without spending hours in the kitchen, this one is it.

Why You’ll Love This Recipe

Only 3 Main Ingredients – This lemon posset uses just heavy cream, sugar, and fresh lemon juice to create something that tastes incredibly fancy. It’s hard to believe something so simple can taste so luxurious.

Naturally Gluten Free – You don’t need to swap out any ingredients or buy specialty products here. This dessert is naturally gluten free all on its own, so there’s zero compromise on taste or texture.

No Eggs or Gelatin Needed – Unlike custards or panna cotta, this posset sets all by itself thanks to the magic of lemon juice reacting with the cream. No fussy egg tempering or gelatin blooming required.

It Feels Super Fancy – Lemon posset sounds like something you’d order at an upscale restaurant, and it tastes like it too. Serve it at a dinner party and people will think you spent hours in the kitchen.

Ingredients

2 cups Heavy Cream
1/2 cup Sugar
1/3 cup Fresh Lemon Juice
1 tbsp Lemon Zest
Fresh Berries for topping (optional)

How to Make

Step 1

In a medium saucepan, combine heavy cream and sugar. Bring to a boil over medium heat, stirring occasionally.

Step 2

Once boiling, reduce heat slightly and let it boil gently for 3 minutes, stirring frequently to prevent burning.

Step 3

Remove from heat and stir in fresh lemon juice and lemon zest. The mixture will thicken as it cools.

Step 4

Pour the mixture into 4-6 small serving glasses or ramekins.

Step 5

Refrigerate for at least 2 hours until set. Top with fresh berries before serving if desired.

Helpful Tips

Use Fresh Lemons, Not Bottled Juice

Bottled lemon juice might seem like a shortcut, but it doesn’t set the posset as well as fresh juice does. Fresh lemon juice has a stronger acidity that reacts with the hot cream to make it thicken properly.

The flavor difference is also pretty obvious. Bottled juice can taste a little flat or bitter, while fresh juice gives you that bright, clean lemon flavor that makes this dessert so good.

You’ll need about 2-3 medium lemons to get the 1/3 cup of juice this recipe calls for. Grab an extra one just in case your lemons aren’t super juicy.

Zest Your Lemons Before Juicing Them

This is one of those things that seems small but makes a big difference. Always zest your lemons first, while they’re still whole and firm. Trying to zest a lemon after you’ve cut it in half and squeezed it is a slippery, frustrating mess.

When you zest, only grate the bright yellow outer layer. The white part underneath, called the pith, is really bitter and will throw off the taste of your posset.

Watch the Cream So It Doesn’t Boil Over

Heavy cream foams up fast once it starts to boil, and it can spill over the sides of the pan in seconds. Stay right next to the stove and keep your eyes on it the entire time.

Using a medium saucepan instead of a small one gives the cream more room to rise without overflowing. If you see it climbing up the sides too fast, just lift the pan off the burner for a second and stir it down.

Keeping the heat at medium rather than high also helps you stay in control. A gentle, steady boil is what you want here.

Frequently Asked Questions

How does lemon posset set without gelatin or eggs?

The magic is in the lemon juice. When you add the acidic lemon juice to the hot cream and sugar mixture, it causes the proteins in the cream to coagulate and thicken. As the mixture cools and chills in the fridge, it firms up into a smooth, spoonable consistency all on its own.

That is why it is so important to use fresh lemon juice and heavy cream with a high fat content. Without those two things, the posset may not set properly.