If you’re on the hunt for a decadent dessert that fits effortlessly into your low-carb lifestyle, look no further than Keto Peanut Butter Mousse! This dreamy, cloud-like treat captures all the nostalgic flavors of peanut butter with none of the sugar crash. Each bite is rich, creamy, and just the right amount of sweet, making it the ultimate finish to any meal or a well-deserved midday pick-me-up. Plus, with just a handful of wholesome, keto-approved ingredients and absolutely no cooking required, this mousse delivers total satisfaction at lightning speed (and with almost no clean-up). If you love peanut butter and crave an easy, showstopping dessert, this is the recipe for you.
Ingredients You’ll Need
There’s something magical about how a few simple, carefully chosen ingredients can become such a luscious mousse. Each plays a crucial role in building the flavor, texture, and irresistible silkiness of this Keto Peanut Butter Mousse, so don’t skip or substitute if you want dessert perfection!
- Heavy whipping cream: This is what gives the mousse its light, airy structure and helps it set to that dreamy cloud texture.
- Natural creamy peanut butter (unsweetened): For the authentic, nutty depth of flavor, stick with unsweetened natural peanut butter—this keeps everything keto-friendly and full-bodied.
- Powdered erythritol (or preferred keto sweetener): A powdered sweetener will dissolve beautifully, keeping the mousse ultra-smooth and just sweet enough.
- Vanilla extract: Just a touch of vanilla brings out the peanut butter’s best, enhancing both fragrance and flavor.
- Pinch of salt: Don’t skip it! A little salt intensifies all the other flavors and balances the sweetness perfectly.
How to Make Keto Peanut Butter Mousse
Step 1: Whip the Cream
Start by pouring the cold heavy whipping cream into a large mixing bowl. Using an electric mixer, beat it on high speed until stiff peaks form. Be patient and watch carefully: you want it to be fluffy and voluminous but not over-whipped. This whipped cream is what gives your Keto Peanut Butter Mousse its signature lightness.
Step 2: Mix the Peanut Butter Base
In a separate bowl, whisk together the natural creamy peanut butter, powdered erythritol (or your favorite keto sweetener), vanilla extract, and a good pinch of salt. Keep whisking until the mixture is smooth, creamy, and unified in texture. This step is essential for creating that rich peanut butter flavor in every spoonful.
Step 3: Combine and Fold
Now comes the part where the magic happens! Gently fold the whipped cream into the peanut butter mixture in batches. Using a spatula, lightly swirl the two mixtures together, being careful not to deflate the whipped cream. This folding process ensures your Keto Peanut Butter Mousse stays fluffy and doesn’t turn dense. Keep folding until fully incorporated and airy throughout.
Step 4: Chill and Set
Spoon your finished mousse into individual serving cups or bowls, then pop them in the refrigerator for at least an hour. Letting the mousse chill helps the flavors meld and creates an irresistibly silky texture. The wait is worth it!
How to Serve Keto Peanut Butter Mousse
Garnishes
To make your mousse as beautiful as it is delicious, consider topping it with a dollop of whipped cream, a sprinkle of sugar-free chocolate shavings, chopped roasted peanuts, or even a dusting of cocoa powder. Each garnish can add an extra layer of wow, whether you want a bit of crunch, a touch of extra creaminess, or a hit of chocolatey decadence.
Side Dishes
While Keto Peanut Butter Mousse truly shines on its own, it can be part of a larger keto dessert platter. Pair it with a few fresh strawberries or raspberries for a tart contrast, or serve with crispy keto cookies for dipping and textural balance. Even a side of dark chocolate squares works beautifully against the mousse’s creaminess.
Creative Ways to Present
Up level your presentation by spooning the mousse into fancy glasses or mini jars, swirling in a ribbon of sugar-free chocolate syrup, or layering with berries and nuts for a gorgeous parfait look. For parties, pipe little mousse clouds onto a platter and sprinkle with crushed nuts or freeze-dried raspberries for a standout, bite-sized treat. The sky’s the limit for how you show off your Keto Peanut Butter Mousse!
Make Ahead and Storage
Storing Leftovers
If you happen to have leftover mousse (I’ll be honest: it’s rare), simply cover the serving dishes tightly with plastic wrap or transfer to an airtight container. Refrigerate for up to three days. The texture will stay perfect, and the flavors mature wonderfully.
Freezing
You can absolutely freeze Keto Peanut Butter Mousse for longer storage! Scoop the mousse into freezer-safe containers, leaving a little room at the top, and seal well. It’ll keep well for up to one month. Thaw in the refrigerator overnight—note that the texture will be firmer after freezing, almost like a semifreddo, which is delicious in its own right!
Reheating
No need for reheating here; mousse is meant to be enjoyed chilled. If your mousse has been frozen, let it sit in the fridge until fully thawed before serving. For best results, give it a gentle stir to restore any creaminess that may have changed during freezing and thawing.
FAQs
Can I use any peanut butter for Keto Peanut Butter Mousse?
It’s best to stick with natural, unsweetened peanut butter—look for one with just peanuts and maybe a little salt. Avoid brands with added sugar or hydrogenated oils to keep your mousse truly keto and tasting purely nutty.
Is there a substitute for powdered erythritol?
Absolutely! Any powdered, keto-friendly sweetener such as allulose, monk fruit, or stevia blend will work beautifully. Just be sure it’s powdered; granular sweeteners can create a gritty texture in this delicate mousse.
Can I make it dairy-free?
Yes, you can swap out the heavy whipping cream for a full-fat coconut cream. Chill the can, scoop out the solid part, and whip it just as you would heavy cream. The coconut flavor pairs surprisingly well with peanut butter for a tropical twist!
How long does Keto Peanut Butter Mousse need to chill before serving?
The mousse is technically ready to eat as soon as you fold everything together, but chilling it for at least one hour gives a firmer, silkier texture and lets the flavors meld. If you have the patience, refrigerate longer—up to overnight—for the best result.
What can I do if my mousse turns out runny?
If your mousse isn’t setting, it might be because the whipped cream wasn’t beaten to stiff peaks or the peanut butter was too oily. Try chilling the mousse longer or folding in a bit more whipped cream. Next time, make sure your ingredients are cold and the cream is whipped properly.
Final Thoughts
There’s nothing quite as dreamy as diving your spoon into a chilled, creamy cup of Keto Peanut Butter Mousse—especially when you realize it’s low in carbs and high in comfort. This dessert is simple, speedy, and always a crowd-pleaser. If you haven’t tried it yet, now’s the perfect time to whip up a batch and treat yourself. Happy spooning!
Print
Keto Peanut Butter Mousse Recipe
- Prep Time: 10 minutes
- Cook Time: 0 minutes
- Total Time: 10 minutes
- Yield: 4 servings
- Category: Dessert
- Method: No-Cook
- Cuisine: American
- Diet: Vegetarian
Description
Indulge in the creamy, rich goodness of this Keto Peanut Butter Mousse. With just a few simple ingredients, you can whip up a delicious low-carb dessert that’s perfect for satisfying your sweet cravings.
Ingredients
Heavy Whipping Cream:
1 cup
Natural Creamy Peanut Butter:
1/2 cup (unsweetened)
Powdered Erythritol or Preferred Keto Sweetener:
1/4 cup
Vanilla Extract:
1 teaspoon
Salt:
Pinch
Instructions
- Beat Heavy Whipping Cream: In a large mixing bowl, beat the heavy whipping cream with an electric mixer until stiff peaks form.
- Prepare Peanut Butter Mixture: In a separate bowl, whisk together the peanut butter, powdered erythritol, vanilla extract, and salt until smooth and well combined.
- Fold in Whipped Cream: Gently fold the whipped cream into the peanut butter mixture in batches until fully incorporated and fluffy.
- Chill and Serve: Spoon the mousse into individual serving cups and refrigerate for at least 1 hour before serving for best texture.
Notes
- For extra indulgence, top with sugar-free chocolate shavings or a dollop of whipped cream.
- Use natural peanut butter with no added sugars to keep it keto-friendly.
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