Description
This easy Peanut Butter Mousse Filling is light, fluffy, and made with just 5 simple ingredients. Perfect for cakes, cupcakes, or parfaits. Ready in 10 minutes!
Ingredients
Main Ingredients
- 1 cup creamy peanut butter (smooth, well-stirred) — Full-fat works best for that rich, velvety texture.
- 1½ cups heavy whipping cream (cold) — The colder, the fluffier it whips!
- ¾ cup powdered sugar (also called confectioners’ sugar) — Sweetens and smooths everything out.
- 1 teaspoon vanilla extract — Adds a warm, cozy note.
- A pinch of salt (optional) — Brings out the peanut butter flavor beautifully.
Optional Add-Ins or Variations
- Mini chocolate chips or chocolate shavings
- A swirl of melted chocolate for a marbled look
- A touch of honey or maple syrup for natural sweetness
Instructions
In a chilled bowl, pour in your cold heavy whipping cream. Use an electric mixer on medium-high speed and whip until soft peaks form.
In another bowl, combine the peanut butter, powdered sugar, vanilla extract, and a pinch of salt (if you’re using it).
Stir everything together with a spatula or whisk until it’s smooth, creamy, and well-blended.
Here’s where the magic happens. Add about a third of the whipped cream to the peanut butter mixture and gently fold it in with your spatula. Use a scooping, turning motion — like you’re folding laundry, not stirring soup.
This lightens up the peanut butter base. Then add the rest of the whipped cream in two more batches, folding gently each time.
Give it a taste! If you want it a little sweeter, fold in another tablespoon or two of powdered sugar.
If the mousse feels too thick or stiff, gently fold in a splash of cream (a tablespoon at a time) until it’s the consistency you love.
Transfer your mousse to an airtight container or leave it in the bowl, cover it, and pop it in the fridge for at least 30 minutes.
Notes
- Don’t skip the chill time — Even though it’s tempting to dive right in, letting the mousse chill helps it set up and makes it easier to pipe or spread.
- Fold, don’t stir — This is the most common mistake! Stirring deflates the cream. Always fold gently with a spatula in a scooping motion.
- Make it ahead — This mousse actually tastes even better after sitting in the fridge for a few hours. The flavors meld together beautifully.
- Prep Time: 10 minutes
- Cook Time: Chill Time: 30 minutes
- Category: Dessert
- Method: No-bake
- Cuisine: American