If you are searching for a delightfully creamy and satisfying dessert that fits perfectly within a low-carb lifestyle, the Keto Peanut Butter Mousse Recipe is exactly what you need. This luscious dessert blends the rich, nutty flavor of peanut butter with velvety whipped cream to create a light yet indulgent treat that you can enjoy guilt-free. Simple to prepare and utterly delicious, this mousse balances sweetness and texture in a way that will keep you coming back for more. Whether for a quick treat or a fancy finale to your meal, this recipe is a true kitchen winner.

Ingredients You’ll Need
Gathering the right ingredients is key to making a smooth and flavorful Keto Peanut Butter Mousse Recipe. Each component plays an essential role in creating the ideal texture and flavor profile, and luckily, the list is wonderfully simple.
- Heavy cream: This is the base of the mousse, whipped to airy perfection for that light, fluffy texture you crave.
- Creamy peanut butter (sugar-free): Adds the rich, nutty centerpiece flavor without unwanted sugar, making it keto-friendly.
- Powdered erythritol (or sweetener of choice): A fine-grain sweetener that blends smoothly to provide a gentle sweetness without carbs.
- Vanilla extract: Enhances all the flavors with a warm, aromatic touch.
- Optional toppings (chopped peanuts or sugar-free chocolate chips): For a bit of crunch and extra indulgence that elevates the mousse to dessert-star status.
How to Make Keto Peanut Butter Mousse Recipe
Step 1: Whip the Heavy Cream to Soft Peaks
Start by pouring the heavy cream into a large mixing bowl and use a hand mixer to beat it until soft peaks form. This means the cream will hold its shape gently but still be soft and billowy, which is vital for that perfect mousse texture that melts in your mouth.
Step 2: Combine Peanut Butter, Sweetener, and Vanilla
In a separate bowl, mix the creamy peanut butter with powdered erythritol and vanilla extract. Stir until the mixture is completely smooth, ensuring the sweetener is fully dissolved so every bite will taste perfectly balanced.
Step 3: Fold the Whipped Cream into Peanut Butter Mixture
Now comes the delicate part: gently folding the whipped cream into the peanut butter mixture. Use a spatula to combine these two gently so you maintain all the airiness from the whipped cream without deflating it, resulting in a fluffy and creamy mousse.
Step 4: Chill the Mousse
Divide the mousse evenly into serving bowls or glasses, then pop them in the refrigerator to chill for at least 30 minutes. This resting period allows the flavors to meld and the mousse to firm up to the ideal scoopable consistency.
Step 5: Add Optional Toppings
Before serving, sprinkle chopped peanuts or sugar-free chocolate chips on top for extra texture and a little crunch. These simple additions bring a gorgeous, tempting finish to your Keto Peanut Butter Mousse Recipe.
How to Serve Keto Peanut Butter Mousse Recipe

Garnishes
Garnishes add a custom flair to this dessert. Consider crushed peanuts for a nutty crunch or a handful of sugar-free chocolate chips for a touch of decadent sweetness that pairs perfectly with peanut butter. Fresh mint leaves or a light dusting of cocoa powder can also brighten up the presentation.
Side Dishes
Although rich and satisfying on their own, serving the mousse alongside fresh berries like raspberries or strawberries can add a burst of freshness that cuts through the richness. A small plate of mixed nuts or a slice of keto-friendly bread also complements the mousse beautifully.
Creative Ways to Present
Try layering your Keto Peanut Butter Mousse in clear glasses with alternating layers of crushed nuts or sugar-free chocolate shavings for an eye-catching parfait. Or serve it in hollowed-out mini bell peppers for a playful twist. Presentation can turn this simple dessert into a showstopper for any occasion!
Make Ahead and Storage
Storing Leftovers
Leftover mousse can be stored in an airtight container in the refrigerator to keep it fresh for up to 3 days. Make sure the container is sealed well to prevent the mousse from absorbing other fridge odors and maintain its creamy texture.
Freezing
This mousse does freeze well if you want to keep it longer. Place portions in freezer-safe containers and freeze for up to 1 month. When ready to enjoy, thaw in the refrigerator overnight to gently bring back its creamy consistency without any graininess.
Reheating
The Keto Peanut Butter Mousse Recipe is best enjoyed chilled and should not be reheated. Bringing it to room temperature before serving is enough to soften it slightly while preserving the luscious texture and flavor.
FAQs
Can I use crunchy peanut butter instead of creamy?
Yes, you can use crunchy peanut butter if you prefer some added texture in your mousse. Just be aware it will introduce small nut pieces throughout the mousse, which some people love and others may find a bit distracting.
Is erythritol the only sweetener I can use?
No! Feel free to substitute powdered erythritol with your preferred keto-friendly sweetener such as monk fruit or stevia, as long as it’s powdered for better blending without graininess.
Can I make this mousse dairy-free?
To make the mousse dairy-free, you would need to substitute heavy cream with a coconut cream that whips well, and make sure the peanut butter is suitable for your dietary restrictions. Keep in mind the texture and flavor may vary slightly.
How long does it take to prepare this mousse?
This Keto Peanut Butter Mousse Recipe is quite quick to make, with about 10 minutes of active preparation, plus a chilling time of at least 30 minutes to firm up before serving.
Can this recipe be doubled or tripled?
Absolutely! The recipe scales up easily. Just be sure to whip the cream in batches if your mixing bowl isn’t large enough, and fold carefully to maintain that airy texture.
Final Thoughts
This Keto Peanut Butter Mousse Recipe is a perfect blend of creamy, nutty, and sweet that can satisfy your dessert cravings without straying from your keto goals. It’s quick, simple, and endlessly versatile, making it one of my personal favorites to whip up anytime. I encourage you to give this mousse a try — it just might become your new go-to keto dessert!
Print
Keto Peanut Butter Mousse Recipe
- Prep Time: 10 minutes
- Cook Time: 0 minutes
- Total Time: 40 minutes
- Yield: 4 servings
- Category: Dessert
- Method: No-Cook
- Cuisine: American
- Diet: Low Carb
Description
This Keto Peanut Butter Mousse is a creamy, low-carb dessert perfect for those following a ketogenic lifestyle. Made with heavy cream, sugar-free peanut butter, and erythritol, it offers a rich and fluffy treat that satisfies sweet cravings while keeping carbs low. The mousse is simple to prepare, requires no baking, and can be topped with chopped peanuts or sugar-free chocolate chips for extra texture and flavor.
Ingredients
Main Ingredients
- 1 cup heavy cream
- 1/4 cup creamy peanut butter (sugar-free)
- 2 tablespoons powdered erythritol (or sweetener of choice)
- 1 teaspoon vanilla extract
Optional Toppings
- Chopped peanuts
- Sugar-free chocolate chips
Instructions
- Whip the Cream: In a large mixing bowl, beat the heavy cream using a hand mixer until soft peaks form. This means the cream will hold its shape but still be soft and airy.
- Mix Peanut Butter Mixture: In a separate bowl, combine the sugar-free creamy peanut butter, powdered erythritol, and vanilla extract. Stir until the mixture is smooth and fully incorporated.
- Fold Together: Gently fold the whipped cream into the peanut butter mixture. Use a spatula to combine them carefully, preserving the fluffiness of the mousse without deflating the cream.
- Chill: Divide the mousse evenly into serving bowls or ramekins. Place them in the refrigerator and chill for at least 30 minutes to set and develop the flavors.
- Add Toppings (Optional): Before serving, optionally sprinkle chopped peanuts or sugar-free chocolate chips on top for added crunch and flavor contrast.
Notes
- Use sugar-free peanut butter to keep the mousse keto-friendly and low in carbs.
- Powdered erythritol is preferred to avoid graininess; you can powder granulated erythritol in a blender if needed.
- For a dairy-free version, you can experiment with coconut cream instead of heavy cream, but texture will vary.
- Ensure you fold the whipped cream gently to maintain the mousse’s airy texture.
- Store leftover mousse covered in the refrigerator and consume within 2 days for best freshness.

