Dessert

Peanut Butter Mousse Recipe

ByMariam Harutyunyan September 18, 2026September 18, 2026

Introduction

This Peanut Butter Mousse is a light, creamy dessert that perfectly balances rich peanut butter flavor with a fluffy texture. It’s elegant enough for guests but simple enough for a midweek treat.

The image shows four clear glass cups filled with three layers of light tan mousse dessert. Each cup is topped with a thick swirl of white whipped cream sprinkled with thin dark brown chocolate shavings. The mousse layers look smooth and creamy with a slightly darker middle layer. The cups sit on a white plate with scattered chocolate shavings, all placed on a white marbled textured surface. The background is softly blurred, focusing on the frontmost cup. photo taken with an iphone --ar 4:5 --v 7

Ingredients

¼ teaspoon powdered gelatin
½ tablespoon cold water

1 cup (280g) creamy peanut butter
3 tablespoons (42g) light brown sugar (packed)

2 ¼ cups (540ml) heavy whipping cream, divided and cold
¼ cup (29g) powdered sugar

½ teaspoon vanilla extract
Chocolate chips or chocolate shavings (optional)

Instructions

Step 1: Add the cold water to a small bowl and sprinkle the gelatin evenly over it, making sure all the gelatin touches the water. Stir if necessary to moisten all gelatin. Let it bloom for 5 minutes until firm.

Step 2: In a large bowl, combine 1 cup of the heavy whipping cream and brown sugar with the peanut butter. Gently fold or stir until well blended; the mixture will thin then thicken.
Step 3: Heat the bloomed gelatin for 8-10 seconds until melted. Add it to the peanut butter mixture and fold until fully incorporated.
Step 4: Whip the remaining 1 ¼ cups of heavy whipping cream with powdered sugar and vanilla extract in a large bowl until stiff peaks form. Fold one-third of this whipped cream into the peanut butter mixture, then fold in the rest until smooth and streak-free.

Step 5: Divide the mousse into 5-6 glass cups or serving dishes. Refrigerate for 3-4 hours or overnight until firm.
Step 6: To make the topping, whip the additional heavy whipping cream with powdered sugar and vanilla extract until stiff peaks form.
Step 7: Pipe or spoon the whipped cream onto the chilled mousse. Garnish with chocolate chips or shavings if desired.

Step 8: Keep the mousse refrigerated until ready to serve. Enjoy within 3-4 days for best quality.

Tips & Variations

For a vegan option, substitute gelatin with agar-agar and use coconut cream instead of heavy cream.
Use crunchy peanut butter for added texture.

Try adding a pinch of salt to enhance the peanut butter flavor.
Top with crushed peanuts or a drizzle of caramel sauce for extra indulgence.

Storage

Store the peanut butter mousse covered in the refrigerator for up to 3-4 days. Keep topped whipped cream separate until just before serving if possible, to maintain its texture. Reheat is not recommended; serve chilled for best taste and texture.

How to Serve

Three glass cups hold a creamy light brown mousse with a smooth, airy texture. Each mousse cup is topped with a thick swirl of white whipped cream, which is sprinkled with thin dark brown chocolate shavings. The cups sit on a white plate with a speckled pattern, placed on a white marbled surface. One mousse cup is partially eaten, showing the fluffy inside. Two silver spoons with dollops of whipped cream and chocolate shavings rest on the plate. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I make this mousse ahead of time?

Yes, the mousse can be made and refrigerated overnight. This actually helps it set and develop flavor.

What can I substitute for powdered gelatin?

You can use agar-agar powder as a vegetarian substitute, following package instructions for blooming and dissolving.

Mariam Harutyunyan