Name: 4-Ingredient Peanut Butter Mousse
Prep time: 10 min
Total time: 1 h 10 min
Cuisine: American
Ingredients: 1 cup heavy whipping cream; 1 cup creamy peanut butter; 1/2 cup powdered sugar; 1 teaspoon vanilla extract

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If I need a rich, creamy, and indulgent dessert that’s both quick and satisfying, this 4-Ingredient Peanut Butter Mousse hits the spot. It’s smooth, airy, and loaded with peanut butter flavor — perfect for a last-minute treat or an easy no-bake dessert.

4-Ingredient Peanut Butter Mousse

Why I Love This Recipe

I love how this mousse comes together in just minutes using ingredients I usually have on hand. It doesn’t require any baking, which makes it ideal when I want something sweet without turning on the oven. The texture is so light and creamy, it feels like something fancy from a restaurant, yet it’s made in my own kitchen with only four simple ingredients.

Ingredients

(Here’s a tip: Check out the full list of ingredients and measurements in the recipe card below.)

1 cup heavy whipping cream
1 cup creamy peanut butter
1/2 cup powdered sugar
1 teaspoon vanilla extract

Directions

I start by beating the heavy whipping cream in a large mixing bowl until stiff peaks form. This gives the mousse its light, airy texture.
In a separate bowl, I mix the peanut butter, powdered sugar, and vanilla extract until smooth.
Then I gently fold the whipped cream into the peanut butter mixture, being careful not to deflate the cream too much.
Once everything is fully combined, I spoon the mousse into serving glasses or bowls.
I chill it for at least an hour before serving, so it sets and gets that silky texture I love.

Servings and timing

This recipe makes about 4 servings.
Prep time: 10 minutes
Chill time: 1 hour
Total time: 1 hour 10 minutes

Variations

I sometimes swirl in a little melted chocolate before chilling for a chocolate-peanut butter twist.
For crunch, I sprinkle crushed graham crackers, chocolate chips, or chopped peanuts on top.
I’ve also tried using almond butter instead of peanut butter — it’s delicious and slightly more mellow.
To make it dairy-free, I use coconut cream in place of the heavy cream and make sure the peanut butter is dairy-free.

Storage/Reheating

I store any leftover mousse in an airtight container in the refrigerator for up to 3 days.
It’s best served cold, so there’s no need to reheat — I just give it a quick stir if it’s been sitting.
For a frozen treat, I’ve even frozen it in individual portions — it turns into a creamy, peanut butter ice cream!

4-Ingredient Peanut Butter Mousse

FAQs

What kind of peanut butter works best for this mousse?

I prefer using creamy, processed peanut butter (like Jif or Skippy) because it blends smoothly and gives the best texture. Natural peanut butter can work, but it might separate and affect the creaminess.

Can I use an electric mixer to make this mousse?

Yes, I use an electric mixer to whip the cream and to blend the peanut butter mixture. It makes the process faster and ensures everything is smooth and fluffy.

Can I make this mousse ahead of time?

Absolutely. I often make it a day in advance and keep it chilled in the fridge. The texture actually improves as it sits.

Is this mousse very sweet?

It’s lightly sweet, which I love. The powdered sugar balances the richness of the peanut butter without making it overly sugary. If I want it sweeter, I just add a bit more sugar to taste.

Can I use whipped topping instead of heavy cream?

Yes, I’ve swapped in whipped topping (like Cool Whip) when I’m in a hurry. It works well and makes the mousse even quicker to prepare.

Conclusion

This 4-Ingredient Peanut Butter Mousse is a game changer for me when I’m craving something sweet but simple. It’s rich, fluffy, and full of peanut butter flavor — and best of all, it comes together in minutes with no baking required. Whether I serve it at a dinner party or enjoy it straight from the bowl, it never disappoints.