Fluffy Peanut Butter Mousse Recipe – Easy No-Bake Dessert for a Rich & Creamy Treat
If you love peanut butter, this mousse is going to be your new favourite thing. It is light and airy but still tastes incredibly rich — like eating a cloud made entirely of peanut butter. And the best part? You only need 4 ingredients and about 10 minutes to pull it together.
I make this peanut butter mousse whenever I need a no-bake dessert that feels a little fancy but is honestly so simple. It works as a quick treat after dinner, a filling for cakes or cupcakes, or just something to eat straight out of the bowl with a spoon. No judgement here.
This recipe comes together fast, keeps well in the fridge, and every single time I serve it, someone asks for the recipe. The texture is perfectly smooth and fluffy, the flavour is pure peanut butter — sweet, salty, and totally irresistible.
If you are already a mousse fan, you will want to check out my collection of mousse recipes — there is something for every craving in there!
WHY YOU WILL LOVE THIS RECIPE
- Only 4 ingredients — peanut butter, heavy cream, powdered sugar, vanilla
- Ready in 10 minutes, no baking, no gelatin, no fuss
- Light and fluffy texture with deep, rich peanut butter flavour
- Works as a dessert on its own, a cake or cupcake filling, or a pie topping
- Easy to make ahead — keeps in the fridge for up to 3 days
- Naturally gluten-free
INGREDIENTS
- 1 cup (240 ml) heavy whipping cream, cold
- 1 cup (258 g) creamy peanut butter
- ¾ cup (90 g) powdered sugar, sifted
- 1 tsp vanilla extract
- 1 pinch salt (optional but recommended)
Garnish (optional):
- Crushed peanuts
- Mini chocolate chips
- Melted chocolate or caramel, for drizzling
- Whipped cream
INGREDIENT NOTES AND SUBSTITUTIONS
Heavy whipping cream — Use full-fat, very cold cream for the best results. Cold cream whips up much faster and holds its peaks better. Do not use half-and-half or single cream — it won’t whip properly.
Peanut butter — Creamy, commercial-style peanut butter works best here (like Jif or Skippy). Natural peanut butter that separates can make the mousse a bit grainy or oily, so if you use it, make sure it is very well stirred and at room temperature.
Powdered sugar — Also called icing sugar. Sifting it first makes the mousse extra smooth. Adjust the amount to your taste — less if you like it less sweet, a little more if you have a serious sweet tooth.
Vanilla extract — Just a touch deepens the flavour. You can skip it if you don’t have any, but it really does make a difference.
Salt — A small pinch balances the sweetness and brings out the peanut butter flavour even more. Highly recommend not skipping this one.
STEP-BY-STEP INSTRUCTIONS
Step 1: Whip the Heavy Cream
Pour the cold heavy whipping cream into a large chilled bowl. Using a hand mixer or stand mixer fitted with the whisk attachment, beat on medium-high speed until stiff peaks form. This takes about 3–4 minutes. The cream should hold its shape when you lift the beaters. Set aside.
Step 2: Mix the Peanut Butter Base
In a separate bowl, add the peanut butter, sifted powdered sugar, vanilla extract, and a pinch of salt. Beat together on medium speed until the mixture is smooth and well combined. It will be quite thick — that is exactly what you want.
Step 3: Fold in the Whipped Cream
Add about one-third of the whipped cream to the peanut butter mixture and stir it in gently to loosen the mixture. Then add the remaining whipped cream and fold it in gently using a rubber spatula. Use slow, sweeping motions from the bottom up — you want to keep as much air in the mousse as possible. Stop as soon as everything is combined and you see no white streaks.
Step 4: Chill and Serve
Spoon or pipe the peanut butter mousse into serving glasses or bowls. Cover with plastic wrap and refrigerate for at least 30 minutes before serving. This gives the mousse time to firm up slightly and the flavours to settle. Add your toppings just before serving.
TIPS FOR THE BEST RESULTS
- Keep everything cold — chill your bowl and beaters in the freezer for 10–15 minutes before whipping the cream. Cold equipment = faster, fluffier peaks.
- Don’t overwhip the cream — once you see stiff peaks, stop. Overwhipped cream turns grainy and can ruin the texture of the mousse.
- Fold gently — this is the step people rush through, and it deflates the mousse. Slow and steady keeps it light and fluffy.
- Room temperature peanut butter — cold peanut butter is stiff and hard to mix. Let it sit at room temp for a bit if your kitchen is cool.
- Taste and adjust — once you have mixed everything, taste it. Add a little more powdered sugar if you want it sweeter, or a tiny extra pinch of salt to balance.
- Make ahead — this mousse actually tastes even better the next day after sitting in the fridge overnight.
VARIATIONS AND ADD-INS
- Chocolate peanut butter mousse — Fold in 2–3 tbsp of cocoa powder with the peanut butter mixture, or drizzle melted dark chocolate over the top before chilling.
- Peanut butter mousse pie filling — Pour into a pre-made chocolate cookie or graham cracker crust and refrigerate until set (at least 2 hours). Instant peanut butter mousse pie!
- Peanut butter mousse cake filling — Use as a filling between cake layers. The mousse holds up well when sandwiched between sponge layers and chilled.
- Peanut butter mousse frosting — Pipe onto cupcakes using a piping bag fitted with a large star tip. Works especially well on chocolate cupcakes.
- Peanut butter mousse brownie topping — Spread a thick layer over cooled brownies for a stunning bar dessert. Chill, then slice.
- Cream cheese version — Beat in 4 oz (115 g) of softened cream cheese with the peanut butter for a tangier, slightly denser mousse.
- Keto peanut butter mousse — Swap the powdered sugar for powdered erythritol or powdered monk fruit sweetener, same amount. The texture and taste are nearly identical.
WHAT TO SERVE WITH IT
- Chocolate wafer cookies or chocolate graham crackers for dipping
- Fresh sliced banana or strawberries on the side
- A drizzle of warm caramel or hot fudge sauce
- On top of warm chocolate brownies
- Inside a pre-baked tart shell for a quick dessert
- Layered with crushed Oreos in a parfait glass
Peanut Butter Mousse
Ingredients
Method
- Whip the cream — Pour cold heavy whipping cream into a large chilled bowl. Using a hand or stand mixer, beat on medium-high speed until stiff peaks form, about 3–4 minutes. Set aside.
- Make the peanut butter base — In a separate bowl, beat together the peanut butter, sifted powdered sugar, vanilla extract, and salt on medium speed until smooth and combined.
- Fold together — Add a third of the whipped cream to the peanut butter mixture and stir to loosen. Add the remaining whipped cream and fold in gently with a rubber spatula until just combined and no white streaks remain. Do not overmix.
- Chill and serve — Divide the mousse between 6 serving glasses or bowls. Cover and refrigerate for at least 30 minutes. Add garnishes just before serving.
Notes
- Use full-fat heavy whipping cream and make sure it is very cold before whipping.
- Creamy commercial peanut butter (like Jif or Skippy) gives the smoothest result. If using natural peanut butter, stir well and bring to room temperature first.
- For a keto peanut butter mousse, replace powdered sugar with the same amount of powdered erythritol or monk fruit sweetener.
- Store covered in the fridge for up to 3 days.
- This mousse also works as a peanut butter mousse filling for cakes, cupcakes, or pie.
This peanut butter mousse is one of those recipes you will come back to again and again. It is easy enough to make on a weeknight but impressive enough to serve at a dinner party. Once you have the base down, the possibilities really are endless — use it as a pie filling, layer it with brownies, or just keep a bowl in the fridge for whenever that peanut butter craving hits.
The whole thing takes less than 15 minutes of actual work, and the result is this gorgeous, creamy, cloud-like mousse that tastes like a peanut butter cup in dessert form. If you are a peanut butter lover, I promise you are going to absolutely love this one.
Let me know in the comments how you served yours — I always love hearing what you all do with these recipes!Fluffy Peanut Butter Mousse Recipe Card
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