Keto Chocolate Peanut Butter Fat Bombs Recipe

These keto chocolate peanut butter fat bombs are a no-bake, sugar-free treat made with peanut butter, cocoa powder, coconut oil, and a powdered sugar substitute for a creamy bite that tastes like a low-carb peanut butter cup.

This recipe has been a longtime reader favorite here on Fit To Serve Group, with over 13,000 shares and more than 100 reviews.

It's one of those simple keto recipes that continues to be loved because it delivers exactly what so many of us want: chocolate, peanut butter, and a little something sweet without the sugar crash.

When I first shared these chocolate peanut butter fat bombs, I wanted to create an easy keto treat that could help satisfy cravings while still supporting a low-carb lifestyle.

The combination of creamy peanut butter, unsweetened cocoa powder, refined coconut oil, and a powdered sweetener turned out to be a winning one.

If you miss Reese's peanut butter cups, this keto fat bomb recipe is a simple way to enjoy those same flavors while keeping the carbs low. Each fat bomb has only 1 net carb, making it a great freezer-friendly treat to keep on hand.

Check out our keto peanut butter recipes for more delicious recipes, which include our cream cheese peanut butter fat bombs recipe.

Why This Keto Chocolate Peanut Butter Fat Bombs Recipe Works

• No baking required: Just melt, stir, pour, and freeze.
• Only 1 net carb: A small keto treat that fits easily into a low-carb lifestyle.
• Classic flavor combination: Chocolate and peanut butter make these taste like a keto peanut butter cup.
• Made with cocoa powder: No need to melt sugar-free chocolate bars or chips.
• Simple ingredients: You only need peanut butter, coconut oil, cocoa powder, sweetener, and salt.
• Freezer-friendly: Make a batch and keep them ready for when a craving hits.
• Naturally gluten-free: No flour, grains, or hidden gluten ingredients.

A Reader-Favorite Keto Fat Bomb Recipe

This keto peanut butter chocolate fat bombs recipe has stood the test of time because it is simple, satisfying, and easy to make with ingredients many low-carb kitchens already have on hand.

Over the years, readers have shared how much they enjoy having these fat bombs in the freezer for a quick treat. That is exactly why this recipe remains a favorite.

It does not require baking, special equipment, or complicated steps. It is just a creamy chocolate peanut butter bite that helps make keto feel more doable.

And let's be honest, sometimes having a small sugar-free treat ready to go can make all the difference when everyone else is reaching for candy, cookies, or traditional desserts.

What Are Fat Bombs?

Fat bombs are small low-carb snacks made with high-fat ingredients like coconut oil, peanut butter, butter, cream cheese, cocoa powder, or sugar-free chocolate.

They became popular in the keto community because they offer a quick way to add fats while keeping carbs low. They are usually rich, so a small serving goes a long way.

These keto peanut butter chocolate fat bombs are sweet, creamy, and dessert-like, but they are made without regular sugar.

They are best enjoyed as a small treat, not something to eat by the handful.

Chocolate Peanut Butter Fat Bombs With Cocoa Powder

One of the things that makes this recipe so easy is that it uses unsweetened cocoa powder instead of melted chocolate.

Cocoa powder gives these fat bombs a rich chocolate flavor without adding sugar. It also blends beautifully with melted coconut oil and peanut butter to create a smooth, creamy mixture that firms up once frozen.

You can use regular unsweetened cocoa powder or dark cocoa powder if you prefer a deeper chocolate flavor. Just be sure to choose cocoa powder with no added sugar.

Ingredients And Tools Needed

Disclosure: Some of the links below are affiliate links, meaning, at no additional cost to you, I will earn a commission if you click through and make a purchase.

The full printable recipe card includes the exact measurements, but here's what you'll need to make these keto peanut butter chocolate fat bombs.

• Sugar-free peanut butter: Use a creamy peanut butter with no added sugar for the best texture and flavor.
• Refined coconut oil: Helps the fat bombs firm up in the freezer while keeping the flavor mild.
• Unsweetened cocoa powder: Gives the fat bombs their chocolate flavor. Dark cocoa powder can also be used.
• Powdered sugar substitute: A confectioners-style sweetener helps keep the texture smooth instead of gritty.
• Sea salt: Balances the sweetness and enhances the chocolate peanut butter flavor.
• Silicone chocolate mold  Makes it easy to remove the fat bombs once they are frozen
• Small pot, bowl or double boiler

Choosing The Best Peanut Butter

For the best keto peanut butter fat bombs, use a creamy peanut butter that has no added sugar. The ingredient list should be simple, ideally just peanuts and salt.

Avoid peanut butter spreads that include sugar, honey, molasses, or added oils. Those ingredients can raise the carb count and change the texture of the fat bombs.

Natural peanut butter works well, but make sure it is stirred until smooth before adding it to the recipe. If the peanut butter is too oily or too dry, the texture of the fat bombs may not be as creamy.

Why Use Refined Coconut Oil?

Refined coconut oil is my preferred choice for this recipe because it has a more neutral flavor. It allows the chocolate and peanut butter to shine without adding a strong coconut taste.

Coconut oil also helps the fat bombs firm up once they are chilled. Since coconut oil softens at room temperature, these fat bombs are best stored in the freezer until you are ready to enjoy them.

If you love the flavor of coconut, you can use unrefined coconut oil. Just know that the coconut flavor will be more noticeable.

Best Sweetener For Keto Fat Bombs

A powdered sugar substitute works best for this recipe because it blends more smoothly into the melted peanut butter and coconut oil mixture.

Granulated sweeteners can leave a gritty texture, which is not what you want in a creamy fat bomb.

I recommend using a confectioners-style keto sweetener such as powdered monk fruit or a powdered erythritol blend.

If your sweetener is very sweet, you may want to start with a little less and adjust to taste.

How To Make Keto Chocolate Peanut Butter Fat Bombs

To make these keto chocolate peanut butter fat bombs, start by melting the peanut butter, coconut oil, and cocoa powder together until smooth.

You can do this in a double boiler on the stove or in the microwave using short intervals and stirring in between.

Once the mixture is smooth, stir in the powdered sugar substitute and sea salt. Mix well so the sweetener dissolves into the chocolate peanut butter mixture.

Next, carefully pour the mixture into silicone molds. A small spoon or measuring cup with a spout can make this step easier and less messy.

Place the molds in the freezer and allow the fat bombs to firm up completely. Once they are solid, remove them from the molds and transfer them to an airtight container.

Keep them stored in the freezer and enjoy one whenever you want a small low-carb chocolate peanut butter treat.

Tips For The Best Peanut Butter Chocolate Fat Bombs

Use a silicone mold for easy removal. Since the fat bombs freeze solid, silicone molds make the process much easier than a rigid pan.

Do not skip the sea salt. Even a small amount helps bring out the chocolate and peanut butter flavors.

Use powdered sweetener for the smoothest texture. This is one of the easiest ways to avoid a gritty fat bomb.

Keep them frozen until serving. Because they are made with coconut oil, they will soften quickly at room temperature.

Taste the mixture before freezing. This gives you a chance to adjust the sweetness before the fat bombs set.

Can I Make These Into Peanut Butter Cups?

Yes, you can use this recipe to make keto peanut butter cup-style fat bombs.

Pour a thin layer of the chocolate peanut butter mixture into silicone muffin cups and freeze it until slightly firm. Add a small spoonful of sugar-free peanut butter in the center, then cover it with more of the chocolate mixture.

Freeze until firm. This version takes a little longer, but it gives you more of that classic peanut butter cup experience.

Can I Make These Without Coconut Oil?

Coconut oil is what helps these fat bombs firm up properly, so I do not recommend leaving it out completely.

If you need a substitute, cacao butter may work, but it will change both the flavor and texture. Butter can also be used, but the fat bombs may be softer and may not hold their shape as well.

For the easiest and most consistent results, refined coconut oil is the best option.

Can I Add Sugar-Free Chocolate Chips?

I don't recommend adding sugar-free chocolate chips to this recipe because the fat bombs are already rich and sweet enough.

Adding chocolate chips can make them overly sweet and take away from the creamy chocolate peanut butter balance that makes this recipe work so well.

If you want a deeper chocolate flavor, a better option is to use dark cocoa powder instead of regular unsweetened cocoa powder. This keeps the texture smooth while giving the fat bombs a richer chocolate taste.

How To Store Keto Fat Bombs

Store these keto chocolate peanut butter fat bombs in an airtight container in the freezer for up to one month.

They can also be stored in the refrigerator, but they will be much softer. For the best texture, keep them frozen and let them sit at room temperature for just a minute or two before enjoying.

Because they contain coconut oil, they are not a treat you want to leave out on the counter for long.

Frequently Asked Questions

More Keto Fat Bomb Recipes To Try

If you enjoy these keto chocolate peanut butter fat bombs, be sure to check out more of our low-carb fat bomb recipes.

They are great to keep in the freezer when you want a quick keto treat.

• Keto Cheesecake Fat Bombs
• Keto Chocolate Marble Fat Bombs Keto Bacon Fudge
• Keto Raspberry Cheesecake Fat Bombs
• Keto Lime Cheesecake Fat Bombs
• Keto Blueberry Cheesecake Fat Bombs
• Keto Strawberry Jellow Cream Cheese Fat Bombs
• Keto Cream Cheese Peanut Butter Fat Bombs
• Peppermint Cream Cheese Fat Bombs (Keto Andes Mint)
• White Chocolate Raspberry Fat Bombs

And if you love the combination of chocolate and peanut butter, don't miss my keto peanut butter pie.

Tag Us

These keto chocolate peanut butter fat bombs are a simple, no-bake treat that has earned its place as a reader favorite.

With only a few ingredients, 1 net carb per serving, and all the flavor of a chocolate peanut butter cup, this is one of those recipes worth keeping in your freezer.

If you give this recipe a try, I'd love for you to leave a review and let me know how you enjoyed them. Your reviews and shares help others find these recipes and keep this community growing.

Check out our Amazon Store for recommendations. You might be surprised by how many great keto options are at your disposal.

Grab Our Books & Recipe App

In case you don't know, we've authored two keto cookbooks, Essential Keto Bread and Essential Keto Desserts, both inspired by your requests over the years.

You can also find even more easy keto recipes for breakfast, lunch, dinner, snacks, and desserts inside the  Fit to Serve Group App on  iOS and Android.

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