Keto Peanut Butter Mousse
Published April 24, 2022 • Updated February 2, 2026
Creamy, smooth peanut butter mousse - only 5 ingredients!
This post may contain affiliate links. See my disclosure policy.
All you need is 5 ingredients and 5 minutes to make this velvety keto peanut butter mousse.
I am a huge fan of peanut butter. To keep me from eating spoonful after spoonful of the nutty, creamy stuff, I like to make peanut butter treats like my peanut butter pie and chewy peanut butter cookies. This mousse is the simplest of them all because it only uses five ingredients and doesn’t need any baking.

For a quick and easy low carb dessert that everyone will love, you have to try this peanut butter mousse. The light and airy mousse is packed with nutty flavor and pairs perfectly with hot summer days when you want a cool treat or when those peanut butter cravings hit.
How to make peanut butter mousse
- Combine creamy peanut butter with softened cream cheese, powdered sugar free sweetener and vanilla.
- In a separate bowl, whip heavy whipping cream until stiff peaks form using an electric mixer.
- Fold in 1/3 of the whipped cream into the peanut butter mixture in order to lighten up the batter. Then gently fold in the remaining whipped cream aiming to keep the fluffiness of the mousse.

Key ingredients
- Peanut butter – The star of the show, you can’t have peanut butter mousse without peanut butter. Although you could substitute with your favorite nut butter, like almond butter or cashew butter and achieve a similar result. When selecting a peanut butter, use creamy instead of chunky (unless you want chunks of nuts in your mousse). Also look for one that doesn’t contain added sugars. Ideally the label should just say peanuts or peanuts and palm oil.
- Cream cheese – Cream cheese gives this no-bake dessert structure so you don’t end up with a floppy mousse.
- Powdered sweetener – Added to sweeten our dessert. Look for a confectioner’s sugar-free sweetener like erythritol, monk fruit or allulose.
- Heavy cream – Whipped until stiff peaks form. This is what gives our low carb mousse its lightness and airiness.
Explore 679+ keto recipe videos with step-by-step instructions, tips, and tricks to make keto easy.
Ingredients
1/3 cup no sugar creamy peanut butter
1 oz cream cheese, softened
1/4 cup powdered sugar-free sweetener
1 teaspoon vanilla extract
3/4 cup heavy cream
Step by Step Instructions
Step by Step Instructions
Cream peanut butter mixture
In a large bowl, cream together peanut butter, cream cheese, powdered sweetener and vanilla.
- Peanut butter (creamy)
- Cream cheese (softened)
- Powdered sugar free sweetener
- Vanilla
Make whipped cream
In a medium bowl, add heavy cream. Using an electric mixer, beat until stiff peaks form.
- Heavy whipping cream
Combine mixtures
Add 1/3 of the whipped cream to the peanut butter mixture and mix to combine. Then add in remaining whipped cream and gently fold until combined.
Nutrition disclaimer
The nutrition information provided is an estimate and is for informational purposes only. I am a Doctor of Pharmacy (Pharm.D.); however, this content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or other qualified health provider before making any lifestyle changes or beginning a new nutrition program.


I made this mousse last weekend and it was a nice treat after a long week. The texture was really creamy and it felt indulgent even though it's low carb. I chilled it for a few hours before eating and it reminded me of a peanut butter cheesecake.
I think this is my favorite Keto dessert! I am a huge peanut butter lover: reeses pieces, reeses cup, peanut butter, you name it. I am new to Keto and this dessert is perfect to make my peanut butter craving dissappear! Before Keto my go to ice cream when I went to Dairy Queen was the Reeses Blizzard and this taste just like it! Sometimes I do it as a mousse and sometimes if I'm impatient I mix it all together and freeze it to make peanut butter ice cream. I even got my friends to try it next to the Reese blizzard and most of them couldn't guess which one was Keto.