Keto Peanut Butter Mousse
Peanut butter lovers, rejoice! This Keto Peanut Butter Mousse is a light, fluffy dessert that’s perfect for any occasion—from casual family dinners to elegant dinner parties. With its rich peanut butter flavor and creamy texture, this mousse is sure to impress your guests. Best of all, it’s sugar-free and fits perfectly into a low-carb diet!
Why You’ll Love This Recipe
- Quick and Easy: This mousse comes together in just 5 minutes, making it a fantastic last-minute dessert option.
- Decadent Flavor: The combination of mascarpone and peanut butter creates a rich taste that satisfies your sweet tooth without the guilt.
- Versatile Serving Options: Serve it in individual cups or as part of a dessert buffet; it fits seamlessly into any setting.
- Low Carb Delight: With only 2.9 grams of carbs per serving, this mousse is an excellent choice for those following a keto lifestyle.
- No Baking Required: Enjoy a delicious dessert without turning on the oven—perfect for hot days!

Tools and Preparation
To make this keto peanut butter mousse, you’ll need some essential tools that will ease your preparation process.
Essential Tools and Equipment
- Mixing bowl
- Electric mixer
- Whisk or spatula
- Serving glasses
Importance of Each Tool
- Mixing bowl: A sturdy bowl is critical for combining the ingredients smoothly.
- Electric mixer: This tool makes whipping cream effortless, ensuring you achieve the perfect texture.
- Whisk or spatula: These will help you fold the whipped cream gently into the peanut butter mixture without deflating it.
Ingredients
For this delightful Keto Peanut Butter Mousse, gather 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 Creamy Texture
- 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 with 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 another clean bowl, whip the cold heavy cream until it reaches just below stiff peaks.
Step 3: Combine Mixtures
- Gently fold the whipped cream into the peanut butter mixture until fully combined and smooth.
- Pipe or spoon into serving glasses and top with optional crumbled low carb biscuits and a drizzle of extra peanut butter for garnish.
Enjoy this decadent Keto Peanut Butter Mousse as a satisfying end to any meal!
How to Serve Keto Peanut Butter Mousse
Keto peanut butter mousse is not only delicious but also versatile. You can serve it in various ways to impress your guests or treat yourself. Here are some delightful serving suggestions.
Individual Glasses
- Serve the mousse in small dessert glasses for an elegant presentation. This allows each guest to enjoy their own portion.
Topped with Nuts
- Add a sprinkle of chopped nuts, such as almonds or pecans, for a crunchy texture that complements the smooth mousse.
Chocolate Drizzle
- Drizzle melted dark chocolate over the mousse for an extra touch of indulgence. Choose sugar-free chocolate to keep it keto-friendly.
Fresh Berries
- Garnish with fresh raspberries or strawberries. The tartness of the berries balances the sweetness of the mousse beautifully.
Low Carb Biscuits
- Pair your mousse with crumbled low carb biscuits on top. This adds flavor and a pleasant crunch to every bite.
Whipped Cream Dollop
- Top each serving with a dollop of whipped cream for an extra creamy experience. It’s a classic addition that never disappoints.
How to Perfect Keto Peanut Butter Mousse
Creating the perfect keto peanut butter mousse is all about technique and quality ingredients. Follow these tips for a flawless result.
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Use cold ingredients: Ensure your mascarpone, heavy cream, and mixing bowl are cold. This helps achieve better volume and texture when whipping the cream.
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Don’t overmix: When folding in the whipped cream, be gentle to maintain its airy texture. Overmixing can make your mousse dense.
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Taste as you go: Adjust sweetness by adding more sweetener if desired. Everyone’s taste preference varies, so make it just right for you!
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Chill before serving: Allowing the mousse to chill in the fridge for at least 30 minutes enhances its flavor and makes it firmer.
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Experiment with flavors: Try adding different extracts like almond or hazelnut for a unique twist on classic peanut butter flavor.
Best Side Dishes for Keto Peanut Butter Mousse
Pairing side dishes with your keto peanut butter mousse can elevate your dessert experience. Here are some great options:
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Cheese Platter: A selection of soft cheeses pairs nicely with the rich flavors of the mousse, offering a savory contrast.
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Celery Sticks: Crunchy celery sticks provide a refreshing break from sweetness while remaining low in carbs.
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Coconut Chips: Toasted coconut chips add a delightful crunch and tropical flavor that complements the peanut butter well.
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Dark Chocolate Bark: Homemade sugar-free dark chocolate bark serves as a decadent yet healthy side that matches beautifully with your dessert.
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Avocado Salad: A light avocado salad adds creaminess and freshness, balancing out the richness of the mousse.
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Keto Granola: A sprinkle of homemade keto granola on top offers an extra crunch and nutty flavor without spiking your carb count.
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Roasted Nuts: Serve warm roasted nuts on the side for added texture and flavor; they make an excellent crunchy companion.
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Berry Compote: A small dish of low sugar berry compote can enhance the dessert’s flavor profile while keeping it keto-friendly.
Common Mistakes to Avoid
Making keto peanut butter mousse is easy, but there are some common mistakes to watch out for.
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Using warm ingredients: Always use cold mascarpone or cream cheese. Warm ingredients can affect the mousse’s texture and fluffiness.
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Overmixing the cream: When folding in whipped cream, be gentle. Overmixing can deflate the mousse, resulting in a denser consistency.
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Ignoring sweetness levels: Taste your mousse before serving. If you prefer it sweeter, adjust the powdered sweetener accordingly.
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Not chilling before serving: Allow the mousse to chill in the refrigerator before serving. This enhances the flavors and improves the texture.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container.
- It will last for up to 3 days in the fridge.
Freezing Keto Peanut Butter Mousse
- Freeze in individual portions for easy serving.
- It can be stored for up to 1 month. Thaw overnight in the fridge before serving.
Reheating Keto Peanut Butter Mousse
- Oven: Not recommended for mousse as it may ruin texture.
- Microwave: Use only if necessary; heat on low power for a few seconds at a time.
- Stovetop: Again, not recommended; mousse should be enjoyed chilled.
Frequently Asked Questions
If you’re curious about keto peanut butter mousse, here are some frequently asked questions.
What is Keto Peanut Butter Mousse made of?
Keto peanut butter mousse is made with mascarpone or cream cheese, heavy cream, powdered sweetener, peanut butter, vanilla extract, and a pinch of salt.
How many servings does this recipe provide?
This recipe yields 6 servings, making it perfect for sharing at gatherings or enjoying throughout the week.
Can I customize my Keto Peanut Butter Mousse?
Absolutely! You can add cocoa powder for a chocolate flavor or incorporate other nut butters to change up the taste.
Is Keto Peanut Butter Mousse suitable for meal prep?
Yes! This mousse stores well in the refrigerator and can even be frozen for later enjoyment.
Final Thoughts
Keto peanut butter mousse is an impressive dessert that offers both taste and versatility. With its creamy texture and rich flavor, it’s perfect for any occasion. Feel free to customize with your favorite toppings or mix-ins to make it your own!

Keto Peanut Butter Mousse
Indulge in the delightful world of Keto Peanut Butter Mousse, a luscious dessert that combines rich peanut butter flavor with a light and airy texture. Perfect for any gathering or a sweet treat after dinner, this mousse is not only quick to prepare but also sugar-free and low in carbs, making it an ideal choice for those on a keto diet. With just a handful of ingredients and no baking required, you can whip up this decadent dessert in under five minutes. Serve it in elegant glasses or as part of a dessert buffet to impress your guests. Whether topped with nuts, fresh berries, or a drizzle of dark chocolate, this mousse is sure to satisfy your cravings while keeping your dietary goals intact.
- Total Time: 0 hours
- Yield: Approximately 6 servings 1x
Ingredients
- 1 cup mascarpone cheese
- 1/4 cup powdered sweetener
- 3 tbsp peanut butter
- 1/2 tsp vanilla extract
- 1 cup heavy cream
Instructions
- In a mixing bowl, combine mascarpone, powdered sweetener, peanut butter, and vanilla extract. Blend until smooth using an electric mixer.
- In another bowl, whip the cold heavy cream until just below stiff peaks.
- Gently fold the whipped cream into the peanut butter mixture until smooth.
- Spoon into serving glasses and garnish as desired.
- Prep Time: 5 minutes
- Cook Time: N/A
- Category: Dessert
- Method: No baking required
- Cuisine: Keto
Nutrition
- Serving Size: 1 serving
- Calories: 300
- Sugar: 2g
- Sodium: 150mg
- Fat: 28g
- Saturated Fat: 14g
- Unsaturated Fat: 12g
- Trans Fat: 0g
- Carbohydrates: 3g
- Fiber: 0g
- Protein: 5g
- Cholesterol: 90mg