This dreamy mousse blends creamy peanut butter with airy Cool Whip for a dessert that feels indulgent yet remarkably simple. The mixture comes together in under 10 minutes with just four basic ingredients—no baking required. After chilling for an hour, the mousse sets into a silky-smooth texture that melts in your mouth. Top with roasted peanuts and mini chocolate chips for extra crunch, or keep it classic and serve as-is. Perfect for potlucks, last-minute gatherings, or whenever peanut butter cravings strike.
Last summer my cousin Sarah burst through the back door holding a tub of Cool Whip like she had discovered gold. She swore this mousse would save our summer potluck and five minutes later we were both licking spoons over the sink. The kitchen was ninety degrees but nobody cared.
I made this for my book club when half the group showed up late and everyone was starving. Within ten minutes I had six happy people scraping their glasses clean. One friend actually asked if I would marry her just for the recipe.
Ingredients
- 1 cup creamy peanut butter: The backbone of this dessert. I have tried natural brands but they separate and give you a strange texture. Stick to the mainstream stuff here.
- 1/2 cup powdered sugar: Essential for getting that silky smooth consistency. The sugar grains are fine enough to dissolve completely into the peanut butter without any grainy feeling.
- 1 tsp pure vanilla extract: Do not skip this. It is the secret that makes people ask what else you put in there.
- 1 (8 oz) tub Cool Whip: Use the full fat version for the best results. Thaw it completely or you will get weird icy chunks that ruin the texture.
- 2 tbsp chopped roasted peanuts: The crunch takes this from simple to something special.
- 2 tbsp mini chocolate chips: They distribute better than regular chips and you get chocolate in every bite.
Instructions
- Mix the base:
- Beat the peanut butter, powdered sugar, and vanilla until completely smooth and no sugar pockets remain. This usually takes about two minutes with a hand mixer or some serious determination with a spatula.
- Fold in the fluff:
- Gently incorporate the Cool Whip using a spatula and fold from the bottom up. Do not rush this part or you will lose all the air that makes it mousse.
- Portion and chill:
- Spoon into your prettiest glasses or small bowls. The mousse needs at least one hour in the fridge to set up properly but overnight is even better.
- Add the finishing touches:
- Sprinkle those chopped peanuts and mini chocolate chips right before serving. They stay crunchy and pretty this way instead of getting soggy.
My nephew turned his nose up at peanut butter desserts until he tried this at Christmas. Now he requests it for every family gathering and even made it himself for his class party. His teacher emailed asking for the recipe.
Make It Your Own
Once you master the basic version the variations are endless. I have stirred in crushed Oreos and swirled in hot fudge. My sister adds a layer of ganache on top.
Serving Suggestions
Clear glass bowls show off those beautiful layers and make even simple servings look fancy. These are perfect for dinner parties because you can make them the day before and keep them covered in the fridge.
Storage And Make Ahead Tips
This mousse actually tastes better after sitting overnight which makes it the ultimate prepare ahead dessert. Cover each serving with plastic wrap pressing it directly onto the surface to prevent a skin from forming.
- The texture holds up beautifully for 2 to 3 days in the refrigerator
- Freeze individual portions for up to a month and thaw in the fridge
- Let chilled mousse sit on the counter for 5 minutes before serving
Sometimes the simplest desserts are the ones people remember most. This one has earned permanent residence in my recipe box.
Recipe Questions & Answers
- → Can I use natural peanut butter?
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Natural peanut butter can work, but it may alter the texture slightly. The oils in natural varieties can separate, potentially making the mousse less stable. Creamy commercial peanut butter with added oils typically yields the smoothest, most consistent results.
- → How long does this mousse last in the refrigerator?
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When stored in an airtight container, this mousse stays fresh for 3-4 days in the refrigerator. The texture remains fluffy and creamy throughout, making it perfect for preparing ahead of time for gatherings or meal prep.
- → Can I freeze this mousse for later?
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Freezing is possible but may slightly change the texture upon thawing. The Cool Whip can become icy, and you may need to give it a quick stir to restore fluffiness. For best results, enjoy fresh or refrigerate rather than freeze.
- → What can I use instead of Cool Whip?
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Homemade whipped cream works as a substitute, though it may not hold its shape quite as long. You can also use stabilized whipped cream with a bit of gelatin, or try other frozen whipped toppings available in your area.
- → Can I make this mousse ahead for a party?
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Absolutely! This mousse actually benefits from chilling time, making it ideal for preparing a day in advance. Simply cover your serving dishes with plastic wrap and refrigerate until ready to serve. Add toppings just before serving for the freshest presentation.
- → Is this suitable for a peanut butter pie filling?
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Yes, this mousse works wonderfully as a filling for a peanut butter pie. Simply pour it into a prepared graham cracker or cookie crust and chill for 4-6 hours or overnight. The texture sets perfectly and slices beautifully.