Keto Peanut Butter Mousse
Peanut butter lovers, rejoice! This Keto Peanut Butter Mousse is the perfect dessert for any occasion. Whether you’re hosting a dinner party or enjoying a quiet evening at home, this mousse is sure to impress. With its smooth, fluffy texture and rich peanut butter flavor, your guests will be amazed that it’s sugar-free!
Why You’ll Love This Recipe
- Quick to Prepare: In just 5 minutes, you can whip up a delightful dessert.
- Sugar-Free Indulgence: Enjoy all the flavor of peanut butter without the added sugars.
- Versatile Serving Options: Serve it in elegant glasses or as part of a larger dessert spread.
- Low Carb Delight: Perfect for keto diets, with only 2.9 g of carbs per serving.
- Impressive Presentation: This mousse looks fantastic and tastes even better!

Tools and Preparation
Creating this delightful Keto Peanut Butter Mousse requires minimal tools. Having the right equipment makes the process easier and ensures great results.
Essential Tools and Equipment
- Electric mixer
- Mixing bowls
- Spatula
- Serving glasses
Importance of Each Tool
- Electric mixer: Saves time and effort when whipping cream and mixing ingredients.
- Mixing bowls: Allows for easy combining of ingredients and prevents mess.
- Spatula: Helps fold ingredients gently without deflating the whipped cream.
Ingredients
For the Mousse Base
- 1 cup mascarpone (or cream cheese, cold (240g))
- 1/4 cup powdered sweetener (40g) (use 1/3 cup / 60g for a sweeter mousse)
- 3 tbsp / 55g peanut butter (smooth)
- 1/2 tsp vanilla extract
- pinch sea salt (if your peanut butter is unsalted)
For Whipping
- 1 cup heavy cream (cold (240g))
How to Make Keto Peanut Butter Mousse
Step 1: Combine Ingredients
Add the mascarpone or cream cheese, powdered sweetener, smooth peanut butter, and vanilla extract to a mixing bowl. Use an electric mixer to blend until smooth. If using unsalted peanut butter, add a pinch of sea salt for flavor.
Step 2: Whip the Cream
In a clean bowl, pour in the cold heavy cream. Whip the cream using an electric mixer until it reaches just below stiff peaks. Be careful not to over-whip!
Step 3: Fold Together
Gently fold the whipped cream into the peanut butter mixture using a spatula. Continue folding until everything is well combined and smooth.
Step 4: Serve
Pipe or spoon the mousse into serving glasses. For an extra touch, top with crumbled low-carb biscuits and a drizzle of peanut butter if desired.
Now you have a delicious Keto Peanut Butter Mousse ready to enjoy!
How to Serve Keto Peanut Butter Mousse
Keto peanut butter mousse is a versatile dessert that can be enjoyed in various ways. Whether you want a simple treat or something more elaborate for guests, there are plenty of serving ideas to elevate your mousse experience.
Individual Glasses
- Serve the mousse in small glasses for an elegant presentation. Top with whipped cream and a sprinkle of cocoa powder.
Biscuit Crumble
- Add a low-carb biscuit crumble on top. This adds texture and flavor, making each bite delightful.
Chocolate Drizzle
- Drizzle with melted sugar-free chocolate for an indulgent touch. This enhances the rich peanut butter flavor beautifully.
Fresh Berries
- Garnish with fresh raspberries or strawberries. The tartness complements the sweetness of the mousse perfectly.
Whipped Cream Topping
- A dollop of unsweetened whipped cream on top adds extra fluffiness and richness to your dessert.
Peanut Butter Swirl
- Create a swirl effect by drizzling additional peanut butter on top before serving. It makes for a visually appealing treat.
How to Perfect Keto Peanut Butter Mousse
To achieve the perfect keto peanut butter mousse, consider these essential tips for the best results.
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Use cold ingredients: Ensure that your mascarpone or cream cheese and heavy cream are cold before mixing. This helps create a fluffy texture.
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Choose the right sweetener: Opt for powdered sweeteners like erythritol or monk fruit for a smooth consistency without any grittiness.
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Don’t over-mix: When folding in the whipped cream, mix gently to maintain airiness. Over-mixing can deflate your mousse.
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Taste as you go: Adjust sweetness according to your preference. Start with less sweetener and add more if needed for your ideal taste.
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Chill before serving: Allowing the mousse to chill in the fridge for at least 30 minutes enhances its flavor and texture, making it even more enjoyable.
Best Side Dishes for Keto Peanut Butter Mousse
Pairing side dishes with keto peanut butter mousse can create a balanced meal experience. Here are some great options to consider:
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Keto Chocolate Cake: A rich, decadent cake that complements the lightness of the mousse while keeping it low carb.
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Nutty Granola: Homemade low-carb granola offers crunch alongside the creamy mousse, enhancing texture without adding sugars.
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Avocado Salad: A fresh avocado salad brings healthy fats and bright flavors, balancing out the richness of the dessert.
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Stuffed Mushrooms: Savory stuffed mushrooms can serve as a delightful contrast to the sweetness of your mousse.
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Cheese Platter: A selection of cheeses provides savory bites that pair nicely with sweet desserts like keto peanut butter mousse.
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Bacon-Wrapped Asparagus: This dish offers a salty crunch that beautifully offsets the smoothness of your dessert while keeping it keto-friendly.
Common Mistakes to Avoid
Making Keto Peanut Butter Mousse can be simple, but avoiding common mistakes is key to achieving the perfect texture and flavor.
- Using warm ingredients – Always ensure your mascarpone or cream cheese is cold. Warm ingredients can cause the mousse to become runny.
- Overwhipping the cream – Whip the cream just until it reaches soft peaks. Overwhipping can lead to a grainy texture in your mousse.
- Skipping the folding technique – Gently fold the whipped cream into the peanut butter mixture. This helps maintain airiness and lightness in your mousse.
- Neglecting taste adjustments – If you prefer a sweeter mousse, adjust the powdered sweetener accordingly. Taste as you go to find your ideal sweetness.
- Not chilling before serving – Allowing the mousse to chill for at least 30 minutes enhances its flavor and firmness. Serving it immediately may result in a softer texture.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container for up to 3 days.
- Ensure it’s well-sealed to prevent absorbing other fridge odors.
Freezing Keto Peanut Butter Mousse
- Freeze in a freezer-safe container for up to 2 months.
- Label with the date for easy tracking.
Reheating Keto Peanut Butter Mousse
- Oven – Not recommended as it alters texture. Best served chilled or at room temperature.
- Microwave – Use sparingly if needed; heat in short bursts at low power, stirring between sessions.
- Stovetop – Not advisable for this recipe, as gentle heating can ruin its consistency.
Frequently Asked Questions
Here are some common questions about preparing Keto Peanut Butter Mousse.
Can I use natural peanut butter?
Yes, natural peanut butter works well, but ensure it’s smooth and stirred properly before mixing.
How do I make this mousse dairy-free?
You can substitute mascarpone with coconut cream and use a dairy-free whipped topping for a delicious alternative.
What toppings pair well with Keto Peanut Butter Mousse?
Consider adding chopped nuts, sugar-free chocolate shavings, or fresh berries for extra flavor and texture.
How long does Keto Peanut Butter Mousse last in the fridge?
It will stay fresh for up to 3 days when stored properly in an airtight container.
Final Thoughts
This Keto Peanut Butter Mousse is not only indulgent but also incredibly versatile. You can customize it by adding different flavors or toppings to suit your taste. Perfect for dinner parties or simply enjoying at home, this dessert is sure to impress anyone who loves peanut butter! Try it out and enjoy a delightful treat that fits perfectly into your keto lifestyle!

Keto Peanut Butter Mousse
- Prep Time: 5 minutes
- Cook Time: None
- Total Time: 0 hours
- Yield: Serves approximately 4 people 1x
- Category: Dessert
- Method: No cooking required
- Cuisine: Keto
Description
Indulge in a creamy and decadent Keto Peanut Butter Mousse that is both sugar-free and incredibly easy to whip up! Perfect for any occasion, this luscious dessert provides all the rich flavor of peanut butter without the carbs. In just 5 minutes, you can create a delightful treat that impresses guests and satisfies cravings alike. With its smooth, fluffy texture, this keto-friendly mousse can be served in elegant glasses or as part of a festive dessert spread. Whether topped with whipped cream, a drizzle of chocolate, or fresh berries, each bite promises to be a moment of bliss. Make this guilt-free delight your go-to low-carb dessert!
Ingredients
- 1 cup mascarpone cheese (or cream cheese, cold)
- 1/4 cup powdered sweetener
- 3 tbsp smooth peanut butter
- 1/2 tsp vanilla extract
- 1 cup heavy cream (cold)
Instructions
- In a mixing bowl, combine mascarpone cheese, powdered sweetener, peanut butter, and vanilla extract. Blend until smooth with an electric mixer.
- In a separate bowl, whip the cold heavy cream until it reaches soft peaks.
- Gently fold the whipped cream into the peanut butter mixture using a spatula until fully combined.
- Spoon or pipe the mousse into serving glasses and chill for at least 30 minutes before serving.
Nutrition
- Serving Size: 1/2 cup (125g)
- Calories: 290
- Sugar: 2g
- Sodium: 150mg
- Fat: 27g
- Saturated Fat: 11g
- Unsaturated Fat: 16g
- Trans Fat: 0g
- Carbohydrates: 4g
- Fiber: 1g
- Protein: 6g
- Cholesterol: 80mg