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+ servings
close up of a green bowl of peanut butter mousse topped with chopped chocolate and peanuts on a black and brown striped runner with a copper spoon.

Peanut Butter Mousse

As a filling for a layer cake or eaten right out of a bowl, Peanut Butter Mousse is a simple, three-ingredient dessert you can make for a few or a crowd.
Course Dessert
Cuisine American, Celebrations, Party Food
Prep Time 10 minutes
Total Time 10 minutes
Servings 8



  • In a medium bowl or stand mixer, whip heavy cream until stiff peaks form, around 2-3 minutes.
    2 cups heavy cream
  • In a large bowl, blend peanut butter and powdered sugar together until mixed thoroughly. It'll be difficult to incorporate at first but then you'll get it to relax. It should be completely smooth.
    Add a pinch of salt.
    2 cups creamy peanut butter, 1 1/4 cup powdered sugar, dash of salt
  • Using a large rubber spatula, gently spoon the whipped cream into the peanut butter bowl without mixing it. Once all the whipped cream is in the pb bowl, use the narrow, long edge of the spatula to slice through the center of the peanut butter and whipping cream, turning over the spatula while turning the bowl. You don't want to stir the whipped cream or you'll deflate the cream. For more info, see this video on how to fold ingredients for baking.
  • The entire folding process should take around 2 minutes or so and the peanut butter and whipped cream should be completely folded together.
  • Spoon into serving bowls or use to layer a cake.


  • Make ahead tip: can also be refrigerated until needed but let it stand at room temperature for about 15 minutes 
  • For a crowd: 
    • Use the recipe as is and serve in small shot glasses on a tray for a big party. 
    • Pipe on to a ginger snap cookie for a brunch or cocktail party accessorized with some chopped chocolate.
    For a few: Halve the recipe and serve 4-6 at the end of a great meal.