Deliciously Easy Keto Peanut Butter Mousse Recipe: A Low Carb Delight

Indulge in Keto-Friendly Decadence with Our Keto Peanut Butter Mousse

Are you craving a dessert that’s both indulgent and keto-friendly? Look no further than our Keto Peanut Butter Mousse. This dessert offers a perfect harmony of nutty flavors and creamy texture that will satisfy your sweet tooth without compromising your dietary goals. The best part? It’s packed with healthy fats and low in carbs, aligning perfectly with your keto lifestyle.

Our Keto Peanut Butter Mousse is not just a treat for your taste buds; it’s also a breeze to prepare. With only a handful of ingredients and no cooking required, you can whip up this delightful dessert in no time. It’s an excellent choice for a quick evening treat or a fancy addition to your dinner party menu. Let’s dive into the reasons why this mousse is a top pick for anyone on a keto diet.

Keto Peanut Butter Mousse

A Dessert Born from Necessity and Creativity

The genesis of this Keto Peanut Butter Mousse recipe is rooted in the need for a dessert that could satisfy cravings without the guilt. As someone who follows a ketogenic diet, I understand the challenge of finding desserts that fit into a low-carb, high-fat lifestyle. This recipe was born from a combination of creativity and a desire to enjoy something sweet while maintaining ketosis.

Peanut butter is a staple in many keto pantries, and for good reason. It’s rich in healthy fats and provides a good amount of protein, making it an ideal ingredient for a keto-friendly dessert. The addition of heavy whipping cream adds luxurious creaminess and helps to increase the fat content, which is essential for those aiming to keep their macros in check. The powdered erythritol, a natural sugar substitute, ensures that this mousse remains low in carbs without sacrificing sweetness.

Every ingredient in this mousse has been carefully selected to create a dessert that is not only delicious but also beneficial for those on a ketogenic diet. The natural unsweetened peanut butter offers a dose of heart-healthy monounsaturated fats, while the heavy whipping cream provides a source of vitamin A and calcium. Together, they create a dessert that’s as nutritious as it is delicious.

Ingredients for Keto Peanut Butter Mousse

Mastering the Method for Perfect Keto Peanut Butter Mousse

The key to achieving the perfect texture for your Keto Peanut Butter Mousse lies in the method. Start by chilling your mixing bowl, as this will help the heavy whipping cream to whip up more efficiently. When whipping the cream, be patient and wait for those soft peaks to form before adding the powdered erythritol and vanilla extract. This ensures that the mousse will have the right consistency and stability.

When folding in the peanut butter mixture, use a gentle hand to avoid deflating the whipped cream. This will help maintain the light and airy texture that makes mousse so delightful. If you choose to use xanthan gum for a thicker texture, sprinkle it evenly to avoid clumping. Remember, the mousse will further set as it chills, so don’t worry if it seems too soft initially.

For those looking to elevate their mousse, consider using a piping bag to create an elegant presentation. Chilling the mousse for at least an hour before serving is crucial, as it allows the flavors to meld and the texture to firm up. This patience will be rewarded with a dessert that’s both visually appealing and incredibly satisfying.

Keto Peanut Butter Mousse in a Cup

Variation: Chocolate Swirl Keto Peanut Butter Mousse

For a twist on the classic, melt some sugar-free chocolate and gently swirl it through the mousse before chilling. The chocolate will add a rich depth of flavor and create a marbled effect that’s sure to impress.

Variation: Berry-Topped Keto Peanut Butter Mousse

Top your mousse with a handful of fresh berries for a burst of natural sweetness and a pop of color. Berries like raspberries and strawberries are low in carbs and high in fiber, making them a perfect complement to this keto dessert.

Variation: Pumpkin Spice Keto Peanut Butter Mousse

Embrace the flavors of fall by adding a teaspoon of pumpkin pie spice to the peanut butter mixture. This will give your mousse a warm and cozy flavor that’s perfect for the cooler months.

Substitutions for a Customized Keto Experience

If you’re allergic to peanuts or simply looking for a change, there are several substitutions you can make while keeping this dessert keto-friendly. Almond butter can be used in place of peanut butter for a different nutty flavor profile. If you’re avoiding dairy, coconut cream can replace heavy whipping cream, though the texture may be slightly less fluffy.

For those who don’t have powdered erythritol on hand, other keto-friendly sweeteners like stevia or monk fruit can be used. Keep in mind that the sweetness level may vary, so adjust according to your taste. Lastly, if xanthan gum is not available, you can omit it entirely—the mousse will still be delicious, just slightly less thick.

Frequently Asked Questions

Can I make this mousse dairy-free?

Yes, you can substitute the heavy whipping cream with coconut cream to make a dairy-free version of this mousse. Keep in mind that the texture may vary slightly.

How long can I store this mousse in the refrigerator?

The Keto Peanut Butter Mousse can be stored in an airtight container in the refrigerator for up to 3 days. Be sure to cover it to prevent it from absorbing other flavors.

Is this mousse freezer-friendly?

While you can freeze the mousse, it may affect the texture upon thawing. For best results, enjoy it fresh or refrigerated.

Can I use regular peanut butter instead of natural?

It’s important to use natural, unsweetened peanut butter to keep this dessert keto-friendly. Regular peanut butter often contains added sugars that can increase the carb count.

What can I use if I don’t have powdered erythritol?

Other keto-friendly sweeteners like stevia or monk fruit can be used as a substitute for powdered erythritol. Adjust the amount to achieve your desired level of sweetness.

Keto Peanut Butter Mousse

Indulge in the creamy, velvety richness of our Keto Peanut Butter Mousse. Perfect as a decadent dessert without the guilt, this mousse is a delightful blend of nutty flavors and smooth texture that's sure to satisfy your sweet tooth while keeping your macros in check.
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Prep Time 15 minutes
Cook Time 0 minutes
Total Time 15 minutes
Course Desserts
Cuisine American
Servings 4 servings
Calories 300 kcal


  • Medium mixing bowl
  • Electric mixer
  • Measuring cups and spoons
  • Mixing Spoons
  • Serving Dishes or Piping Bag


  • 1 cup heavy whipping cream 240ml
  • ½ cup natural peanut butter unsweetened, 128g/4.5oz
  • ¼ cup powdered erythritol 48g/1.7oz
  • 1 tsp vanilla extract 5ml
  • ¼ tsp sea salt 1.2g
  • ¼ tsp xanthan gum optional for thicker texture, 0.6g


  • Begin by chilling a medium mixing bowl in the refrigerator for about 10 minutes.
  • Once chilled, pour the heavy whipping cream into the bowl and use an electric mixer to whip it until soft peaks form.
  • Add the powdered erythritol and vanilla extract to the whipped cream, continuing to whip until stiff peaks form.
  • In a separate bowl, combine the natural peanut butter and sea salt, stirring until well mixed.
  • Gently fold the peanut butter mixture into the whipped cream until fully incorporated, being careful not to deflate the cream. If a thicker mousse is desired, sprinkle xanthan gum evenly over the mixture and fold in until well combined.
  • Spoon the mousse into serving dishes or a piping bag to pipe into individual cups.
  • Chill the mousse in the refrigerator for at least 1 hour before serving to allow the flavors to meld and the mousse to set.
  • Garnish with a sprinkle of crushed peanuts or a drizzle of sugar-free chocolate syrup before serving, if desired.


Ensure that the peanut butter used is unsweetened and free from added sugars to maintain ketosis.
The mousse can be stored in the refrigerator for up to 3 days.
For a nut-free version, consider using seed butter like sunflower seed butter in place of peanut butter.


Calories: 300kcalCarbohydrates: 8gProtein: 7gFat: 26gFiber: 4gNet Carbs: 4g
Keyword Keto Mousse, Keto Peanut Butter Mousse, low carb dessert, Peanut Butter Dessert
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