Keto Peanut Butter Mousse Recipe

If you’re searching for a creamy, dreamy, and utterly irresistible keto dessert, this Keto Peanut Butter Mousse is about to steal your heart (and your sweet tooth!). With just a handful of pantry-friendly ingredients and a simple no-bake method, you’ll discover a mousse that’s airy yet rich, with all the peanut butter flavor you crave, minus the sugar. Whether you’re a lifelong low-carb devotee or just looking to impress friends with a guilt-free treat, this recipe is about to become your new go-to for lightning-fast dessert satisfaction.

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Ingredients You’ll Need

The beauty of Keto Peanut Butter Mousse is how effortlessly these basic ingredients come together. Each one brings something essential—whether it’s creaminess, structure, or that unmistakable peanut butter flavor that makes every bite such a delight.

• Heavy Whipping Cream: Whips up light and fluffy, giving the mousse its signature airy texture and rich mouthfeel.
• Cream Cheese, softened: Adds tang and body, making the mousse luscious and helping everything hold together.
• Natural Creamy Peanut Butter (no sugar added): The star of the show! Delivers intense peanut flavor without extra carbs—be sure to use the well-stirred creamy kind for best results.
• Powdered Erythritol or preferred keto sweetener: Lends just the right touch of sweetness; powdered forms dissolve smoothly for the silkiest mousse.
• Vanilla Extract: Enhances and rounds out the flavors, giving the finished dessert a bakery-worthy aroma.
• Pinch of Salt: Don’t skip it! Just a pinch heightens all the flavors and keeps the mousse from tasting flat.

How to Make Keto Peanut Butter Mousse

Step 1: Whip the Heavy Cream

Start things off by pouring your cold heavy whipping cream into a large bowl. Using a hand mixer (or a stand mixer with the whisk attachment), beat the cream on high speed until stiff peaks form. This means the cream will hold its shape and stay fluffy—just be careful not to overwhip or it’ll get grainy. Set that gorgeous whipped cream aside for a moment.

Step 2: Combine Cream Cheese & Peanut Butter

In a separate mixing bowl, add your softened cream cheese, natural peanut butter, sweetener, vanilla extract, and a pinch of salt. Beat everything together until silky smooth and fully blended. At this stage, your kitchen will already start to smell amazing—a true sign you’re on the right track with your Keto Peanut Butter Mousse.

Step 3: Fold in the Whipped Cream

Now comes the transformation! Gently fold about a third of your whipped cream into the peanut butter mixture to lighten it up, then fold in the rest until everything is uniform and fluffy. Take care to be gentle with your spatula so you don’t lose all that lovely volume you’ve created. The result should be a mousse that’s as light as a cloud but rich in flavor.

Step 4: Spoon and Chill

Divide the mousse evenly into serving cups or ramekins, using a spoon or piping bag if you want to be extra fancy. Pop them in the fridge for at least 30 minutes to let the flavors meld and the mousse firm up just a bit. (Pro-tip: It’s worth the wait!)

Step 5: Add Toppings and Enjoy

When you’re ready to serve, don’t forget a flourish on top! Sugar-free chocolate shavings or a sprinkle of crushed peanuts add both visual flair and a satisfying crunch to your Keto Peanut Butter Mousse.

How to Serve Keto Peanut Butter Mousse

Garnishes

The right garnish can transform this mousse from simple to spectacular. Try a dusting of unsweetened cocoa, a swirl of whipped cream, or a handful of toasted peanuts for extra texture. If you want to go all out, grate a few shavings of sugar-free dark chocolate over the top for an elegant finish that plays up the peanut butter’s rich, nutty notes.

Side Dishes

While Keto Peanut Butter Mousse is a standout dessert on its own, it’s also a dreamy companion alongside fresh berries (think raspberries or strawberries for a pop of color and tartness). You could also serve it with a small keto almond flour cookie or as a finishing touch after a light, savory meal for the perfect sweet ending.

Creative Ways to Present

Presentation can be half the fun! Spoon the mousse into wine glasses or mini mason jars for a playful twist, or use a piping bag to layer it with berries in a parfait style. For a dinner party vibe, set out a build-your-own mousse bar with various toppings—crushed nuts, keto-friendly chocolate chips, even coconut flakes—and let your guests customize their Keto Peanut Butter Mousse just the way they like it.

Make Ahead and Storage

Storing Leftovers

Got some mousse left over? Scoop it into an airtight container and store in the refrigerator for up to four days. The texture stays smooth and fluffy, and it’s the perfect make-ahead dessert for busy weeks or last-minute sweet cravings.

Freezing

If you need to store Keto Peanut Butter Mousse for longer, you can easily freeze it! Spoon mousse portions into individual freezer-safe containers, seal tightly, and freeze for up to a month. When you’re ready to enjoy, let them thaw in the fridge overnight for the creamiest results.

Reheating

This mousse is best enjoyed cold, so reheating isn’t necessary. If serving directly from the fridge, give it a little stir to restore its airy texture. If frozen, thaw in the fridge and fluff with a spoon before adding toppings.

FAQs

Is this Keto Peanut Butter Mousse truly keto-friendly?

Yes! With no added sugars, low-carb sweetener, and wholesome fats from cream and peanut butter, this mousse fits perfectly into a ketogenic lifestyle. Just make sure to use unsweetened, natural peanut butter for best results.

Can I make this mousse dairy-free?

Absolutely! For a dairy-free version, substitute coconut cream for the whipping cream and use a vegan cream cheese alternative. The result is just as creamy and satisfying, with a subtle hint of coconut that pairs beautifully with peanut butter.

What kind of sweetener works best in this recipe?

Powdered erythritol is my top pick since it dissolves smoothly and has no aftertaste, but you can use any powdered keto-friendly sweetener you like. Avoid granulated varieties, as they can make the mousse gritty.

Can I make this Keto Peanut Butter Mousse ahead of time?

Definitely! This mousse actually gets better as it chills, so it’s a fantastic make-ahead dessert for potlucks, holidays, or meal prepping your sweet treats for the week ahead.

How do I avoid lumps in my mousse?

Be sure your cream cheese is well-softened before mixing, and start by beating all the base ingredients until completely smooth before folding in the whipped cream. This simple step keeps the texture ultra-creamy and lump-free every time.

Final Thoughts

If you’re craving something decadent and easy, this Keto Peanut Butter Mousse checks all the boxes. Simple, luxurious, and endlessly customizable, it’s the kind of dessert you’ll want to make again and again—so why not treat yourself today?

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