Keto Peanut Butter Chocolate Fat Bombs are small, rich bites packed with creamy peanut butter and smooth chocolate, making them a deliciously satisfying low-carb snack. These treats have the perfect balance of nutty and sweet flavors, with a texture that’s both soft and slightly firm, making them easy to enjoy anytime you need a little pick-me-up.
I love having these fat bombs on hand because they’re super quick to make and keep me on track with my keto goals without feeling like I’m missing out. Plus, they’re incredibly satisfying when I want something sweet but don’t want to go overboard on carbs. A little tip: let them chill well in the fridge or freezer before eating so you get that nice firm bite every time.
My favorite way to enjoy these is straight from the fridge, paired with a cup of coffee or tea. They’re great for a quick snack during busy days or whenever I need a bit of energy and comfort in one small package. Everyone who tries them ends up making a second batch soon after—there’s just something about the peanut butter and chocolate combo that people can’t resist!
Key Ingredients & Substitutions
Peanut Butter: Natural, no-sugar-added peanut butter works best for that pure nutty flavor. You can swap it for almond or cashew butter if you want a different taste or have peanut allergies.
Butter: Unsalted butter adds richness. If you prefer dairy-free, try coconut oil instead—it will change the texture a bit but still taste great.
Sweetener: Powdered erythritol keeps it keto-friendly and mixes well. Monk fruit sweetener or allulose are good alternatives if you want to vary the sweetness.
Chocolate: Sugar-free dark chocolate chips are key for keeping carbs low. If unavailable, use unsweetened baking chocolate with a bit of extra sweetener added.
How Do I Get the Chocolate to Stay Smooth and Shiny?
Melting chocolate can be tricky because it can seize or become grainy. Here’s how to melt it perfectly:
- Use a microwave-safe bowl and heat the chocolate in short 20-30 second bursts.
- Stir well between each burst to distribute heat evenly.
- Stop heating as soon as most chocolate melts; stir to melt the rest with residual heat.
- If the chocolate begins to look crumbly, add a small pat of butter or coconut oil to smooth it out.
Patience and stirring are key for glossy chocolate shells that set nicely on your fat bombs.
Equipment You’ll Need
- Mixing bowl – for combining peanut butter, butter, and sweetener smoothly.
- Silicone mold or mini muffin tin – makes it easy to shape your fat bombs and pop them out.
- Microwave-safe bowl – lets you melt chocolate safely and evenly.
- Spoon or small spatula – helps spread chocolate and peanut butter layers evenly.
- Freezer-safe container – to store your fat bombs and keep them firm.
Flavor Variations & Add-Ins
- Use almond or cashew butter instead of peanut butter for a nutty twist.
- Mix in a pinch of cinnamon or chili powder for a warm or spicy kick.
- Add unsweetened shredded coconut to the peanut butter layer for texture.
- Top with a few sugar-free chocolate chips or chopped nuts for extra crunch.
Keto Peanut Butter Chocolate Fat Bombs: The Perfect Low-Carb Treat!
Ingredients You’ll Need:
For The Peanut Butter Filling:
- ½ cup natural creamy peanut butter (no added sugar)
- ¼ cup unsalted butter, softened
- ¼ cup powdered erythritol or another keto-friendly sweetener
- ½ teaspoon vanilla extract
For The Chocolate Coating:
- 1 ½ cups sugar-free dark chocolate chips or chopped sugar-free chocolate
- Flaky sea salt, for garnish
- Crushed peanuts, for garnish (optional)
How Much Time Will You Need?
This recipe takes about 15 minutes to prepare plus at least 30 minutes in the freezer to set. It’s a quick and easy treat that comes together fast, perfect for when you want a tasty low-carb snack ready in under an hour.
Step-by-Step Instructions:
1. Prepare the Peanut Butter Mixture:
In a mixing bowl, combine the peanut butter, softened butter, powdered erythritol, and vanilla extract. Mix everything well until the mixture is smooth and creamy. This will be the delicious filling for your fat bombs.
2. Prepare Your Mold and Melt Chocolate:
Line a muffin tin or silicone mold with mini cupcake liners or lightly grease it to prevent sticking. Melt the sugar-free dark chocolate in a microwave-safe bowl. Heat in 30-second bursts, stirring well between heating cycles until the chocolate is completely melted and smooth.
3. Assemble the Fat Bombs:
Begin by spooning about one teaspoon of melted chocolate into the bottom of each mold cavity. Spread it slightly to cover the base, then place the mold in the freezer for about 5 to 7 minutes to let the chocolate harden.
Once the chocolate base has set, add about 1 tablespoon of the peanut butter mixture on top of the hardened layer. Press gently to even it out.
Cover the peanut butter filling with more melted chocolate, making sure it fully covers and seals the edges to encase the filling.
Sprinkle a pinch of flaky sea salt and crushed peanuts on top of each fat bomb for a yummy finishing touch.
4. Chill and Store:
Return the fat bombs to the freezer and let them firm up for at least 30 minutes, or until completely set.
Store the finished fat bombs in an airtight container in the refrigerator or freezer to keep them fresh and firm. Enjoy them chilled for the best flavor and texture!
Can I Use Frozen Peanut Butter for This Recipe?
It’s best to use peanut butter at room temperature for easy mixing. If your peanut butter is frozen, thaw it in the fridge overnight and stir well before using to ensure a smooth filling.
How Long Do These Fat Bombs Keep?
Store fat bombs in an airtight container in the fridge for up to 2 weeks or in the freezer for up to 3 months. Just thaw slightly before enjoying for the best texture.
Can I Substitute the Sweetener?
Absolutely! You can swap erythritol for monk fruit sweetener or allulose. Just use powdered versions for smooth mixing, and adjust sweetness to your taste.
What’s the Best Way to Serve These Fat Bombs?
They’re delicious chilled right out of the fridge or freezer. Pair them with a cup of coffee or tea for a satisfying low-carb snack any time of day.
