Keto Peanut Butter Mousse
Peanut butter lovers rejoice! This Keto Peanut Butter Mousse is a delightful treat that’s smooth, fluffy, and perfect for any occasion. Whether it’s a family gathering or an elegant dinner party, this mousse will impress your guests with its rich flavor and sugar-free goodness. Plus, it’s incredibly easy to whip up in just five minutes!
Why You’ll Love This Recipe
- Quick and Easy: You can prepare this mousse in just 5 minutes, making it a perfect last-minute dessert.
- Sugar-Free Delight: Enjoy the sweet taste of peanut butter without the guilt—this recipe uses a powdered sweetener!
- Versatile Serving Options: Serve it in individual cups, as a cake filling, or topped with your favorite low-carb biscuit.
- Rich and Creamy Texture: The combination of mascarpone and whipped cream creates a luxurious mouthfeel.
- Keto-Friendly: With only 2.9g of carbs per serving, this mousse fits perfectly into your low-carb diet.
Tools and Preparation
Before you start making your delicious keto peanut butter mousse, gather the essential tools. These will help ensure your preparation goes smoothly.
Essential Tools and Equipment
- Electric mixer
- Mixing bowls
- Measuring cups
- Spatula
Importance of Each Tool
- Electric mixer: This tool saves time and effort when mixing the mascarpone and peanut butter for a creamy consistency.
- Mixing bowls: Using separate bowls for the different components ensures that you can whip cream effectively without cross-contamination.
- Measuring cups: Accurate measurements are crucial for achieving the perfect balance of flavors in your mousse.

Ingredients
To make this keto peanut butter mousse, you’ll need the following ingredients:
For the 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
For the Whipped Cream
- 1 cup heavy cream (cold (240g))
- Pinch sea salt (if your peanut butter is unsalted)
How to Make Keto Peanut Butter Mousse
Step 1: Prepare the Peanut Butter Mixture
- In a mixing bowl, combine the mascarpone or cream cheese, powdered sweetener, peanut butter, and vanilla extract.
- Use an electric mixer to blend until smooth. If using unsalted peanut butter, add a pinch of sea salt.
Step 2: Whip the Cream
- In a clean bowl, pour in the cold heavy cream.
- Whip the cream until it reaches just below stiff peaks.
Step 3: Combine Mixtures
- 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 Your Mousse
- Pipe or spoon the mousse into individual glasses or bowls.
- Optionally top with crumbled low-carb biscuits or an extra drizzle of peanut butter for added flair.
Now you’re ready to enjoy this delectable keto peanut butter mousse! Each serving is not only satisfying but also aligns perfectly with your low-carb lifestyle.
How to Serve Keto Peanut Butter Mousse
Keto peanut butter mousse is a delightful dessert that can be served in various creative ways. Whether it’s for a casual gathering or a formal dinner, these serving suggestions will elevate your dish and impress your guests.
Individual Glasses
- Serve the mousse in small glasses for an elegant touch. Layer with low-carb crumbles for added texture.
Topped with Berries
- Add fresh berries like raspberries or strawberries on top. The tartness complements the sweetness of the mousse beautifully.
With Whipped Cream
- A dollop of additional whipped cream on top creates a rich and creamy experience. Consider sweetening it lightly for extra flavor.
Chocolate Drizzle
- Drizzle melted sugar-free chocolate over the mousse for an indulgent finish. This adds both visual appeal and a chocolatey taste.
Crushed Nuts
- Sprinkle crushed nuts like almonds or walnuts on top for a crunchy contrast. This adds not only flavor but also healthy fats.
Low-Carb Biscuit Crumble
- Crumble low-carb biscuits atop the mousse for added crunch. This is perfect for those who enjoy different textures in their desserts.
How to Perfect Keto Peanut Butter Mousse
To ensure your keto peanut butter mousse turns out perfectly every time, consider these helpful tips.
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Use cold ingredients: Ensure that your mascarpone or cream cheese and heavy cream are cold before mixing. This helps achieve better texture and volume.
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Whip cream to just below stiff peaks: Avoid over-whipping the cream, as it should still be soft enough to fold into the peanut butter mixture without losing airiness.
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Adjust sweetness: Taste your mousse as you mix in the sweetener. You can easily adjust it to meet your personal preference by adding more if needed.
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Fold gently: When combining the whipped cream with the peanut butter mixture, fold gently to maintain lightness and fluffiness.
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Chill before serving: Allowing the mousse to chill in the fridge for at least 30 minutes enhances its flavors and improves texture.
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Experiment with flavors: Try adding different extracts like almond or coconut for unique twists to your mousse recipe.
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:
- Fresh Fruit Salad: A mix of low-carb fruits provides a refreshing contrast to the rich mousse.
- Keto Chocolate Cake: A slice of sugar-free chocolate cake can enhance your dessert experience while keeping carbs low.
- Creamy Avocado Salad: The smoothness of avocado salad complements the lightness of the mousse nicely.
- Cheese Platter: Offer assorted cheeses for a savory balance against the sweet dessert.
- Nut Butter Celery Sticks: Crunchy celery filled with nut butter makes for a satisfying snack alongside dessert.
- Coconut Macaroons: These sweet treats pair well with peanut butter flavors while remaining keto-friendly.
- Zucchini Chips: Crispy zucchini chips add an unexpected crunch without overwhelming calories or carbs.
- Vegetable Crudités: Fresh vegetables provide a light option that balances out richer flavors from desserts like mousse.
Common Mistakes to Avoid
When making your Keto Peanut Butter Mousse, it’s easy to overlook a few key details that can affect the final result. Here are some common mistakes to steer clear of:
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Using warm ingredients: Ensure that your mascarpone or cream cheese is cold. Warm ingredients can prevent the mousse from achieving its desired fluffy texture.
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Overmixing the whipped cream: When folding in the whipped cream, be gentle. Overmixing can deflate the airiness, leading to a denser mousse.
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Skipping the sweetener adjustment: Not all sweeteners are created equal. Taste your mixture before serving and adjust the sweetener according to your preference for sweetness.
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Not chilling before serving: For best results, let the mousse chill in the refrigerator for at least an hour. This helps enhance flavors and improve texture.
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Ignoring salt if using unsalted peanut butter: If you’re using unsalted peanut butter, don’t forget to add a pinch of sea salt for balanced flavor.

Storage & Reheating Instructions
Refrigerator Storage
- Store in airtight containers to maintain freshness.
- Best consumed within 3 days for optimal taste and texture.
Freezing Keto Peanut Butter Mousse
- Freeze in single-serving portions for easy access.
- Can be stored for up to 2 months; just ensure containers are well-sealed.
Reheating Keto Peanut Butter Mousse
- Oven: Not recommended as it may change the texture.
- Microwave: Heat in 10-second intervals on low power until slightly softened; do not overheat.
- Stovetop: Gently warm in a saucepan over low heat, stirring constantly until softened.
Frequently Asked Questions
This section addresses some common questions about Keto Peanut Butter Mousse to help you along your cooking journey.
Can I use crunchy peanut butter for this recipe?
Yes, using crunchy peanut butter will give your mousse a different texture and added crunch, enhancing the overall experience!
How can I make my Keto Peanut Butter Mousse sweeter?
To increase sweetness, simply add more powdered sweetener until it reaches your desired level of sweetness.
What are some toppings for Keto Peanut Butter Mousse?
You can top your mousse with sugar-free chocolate shavings, crushed nuts, or fresh berries for added flavor and texture.
Is Keto Peanut Butter Mousse suitable for meal prep?
Absolutely! This mousse can be prepared ahead of time and stored in the fridge or freezer. It’s perfect for quick desserts throughout the week.
Final Thoughts
Keto Peanut Butter Mousse is not only delicious but also incredibly versatile. You can customize it with various toppings or mix-ins like cocoa powder or other nut butters. Encourage your friends and family to try this delightful dessert—they won’t believe it’s sugar-free!
Keto Peanut Butter Mousse
Indulge in a creamy, decadent Keto Peanut Butter Mousse that will satisfy your sweet tooth without compromising your dietary goals. This luscious dessert is not only easy to prepare—taking just five minutes—but also sugar-free and keto-friendly, making it the perfect treat for any occasion. Whether you’re hosting a dinner party or simply craving something deliciously sweet, this mousse delivers rich peanut butter flavor with a smooth, fluffy texture that will impress your guests. Customize it with your favorite toppings or serve it elegantly in individual cups for a delightful presentation. Enjoy guilt-free indulgence with every bite!
- Prep Time: 5 minutes
- Cook Time: None
- Total Time: 0 hours
- Yield: Serves approximately 4
- Category: Dessert
- Method: No-bake
- Cuisine: Keto
Ingredients
- 1 cup mascarpone (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 (or cream cheese), powdered sweetener, peanut butter, and vanilla extract. Blend until smooth using an electric mixer.
- In a separate bowl, whip the cold heavy cream until just below stiff peaks.
- Gently fold the whipped cream into the peanut butter mixture until well combined.
- Spoon or pipe the mousse into individual serving glasses and chill before serving.
Nutrition
- Serving Size: 1 serving
- Calories: 320
- Sugar: 2g
- Sodium: 70mg
- Fat: 30g
- Saturated Fat: 18g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 5g
- Fiber: 1g
- Protein: 6g
- Cholesterol: 80mg