9 Keto Peanut Butter Fat Bomb Recipes for Snack Prep

Peanut butter and keto? Absolutely.

These fat bombs are the ultimate grab-and-go snack that keeps you on track without sacrificing flavor. Whether you need a quick energy boost or a sweet fix, these recipes deliver rich, creamy satisfaction in every bite.

Forget boring snacks—these bold little bites are packed with healthy fats and real peanut butter taste. Prep them once and enjoy all week.

1. Classic Creamy Peanut Butter Fat Bombs

When you need a quick, indulgent snack that fits your keto macros, these three-ingredient fat bombs deliver. Creamy peanut butter meets rich coconut oil and a touch of sweetness for a melt-in-your-mouth treat that feels like a cheat. They're the ultimate no-fuss prep option—mix, chill, and grab one whenever cravings hit.

Ingredients

• 1 cup creamy peanut butter (no sugar added)
• 1/2 cup coconut oil, melted
• 2 tablespoons powdered erythritol (or to taste)

Instructions

1. In a medium bowl, combine peanut butter, melted coconut oil, and powdered erythritol. Stir until smooth and fully incorporated.
2. Line a mini muffin tin with paper liners or a small baking dish with parchment paper.
3. Pour the mixture evenly into the liners or dish, filling each about 3/4 full.
4. Place in the freezer for 20–25 minutes, or until firm. Pop out of the liners and store in an airtight container in the fridge.
5. Enjoy straight from the fridge for a creamy texture, or let sit at room temperature for a softer bite.

Serving Tip

For portion control, use a mini muffin tin to make 12–15 fat bombs. Store in the fridge for up to two weeks, or freeze for longer storage—just thaw for a few minutes before eating.

2. Chocolate-Dipped Peanut Butter Cups

These mini fat bombs are the ultimate keto candy bar hack. A creamy peanut butter center gets enrobed in a thin shell of sugar-free dark chocolate, cracking open with each bite. They satisfy that deep chocolate-peanut butter craving without spiking your carbs.

Make a batch on Sunday and you'll have a ready-to-grab snack all week.

Ingredients

• 1/2 cup natural peanut butter (no sugar added)
• 2 tbsp coconut oil, melted
• 2 tbsp powdered erythritol
• 1/2 tsp vanilla extract
• Pinch of salt
• 1/2 cup sugar-free dark chocolate chips
• 1 tsp coconut oil (for chocolate coating)

Instructions

1. Line a mini muffin tin with 8 silicone or paper liners.
2. In a bowl, mix peanut butter, 2 tbsp melted coconut oil, powdered erythritol, vanilla, and salt until smooth.
3. Divide the peanut butter mixture evenly among the liners, pressing down lightly. Freeze for 20 minutes until firm.
4. In a microwave-safe bowl, melt dark chocolate chips with 1 tsp coconut oil in 30-second bursts, stirring until smooth.
5. Remove peanut butter cups from freezer. Spoon a small amount of melted chocolate over each, spreading to cover the top completely.
6. Return to freezer for 10 minutes until chocolate sets. Store in the fridge.

Serving Tip

Keep these in the fridge for up to two weeks. For a softer texture, let them sit at room temperature for 2–3 minutes before eating. They also travel well in a small cooler for work or gym snacks.

3. Crunchy Peanut Butter Bacon Bombs

Bacon and peanut butter might sound like an odd couple, but one bite proves they were meant to be together. The salty, smoky crunch of crispy bacon cuts through the rich, creamy peanut butter base, creating a fat bomb that's bold, savory, and just sweet enough. These bombs are perfect for when you want something indulgent that still fits your macros—no baking required, just a quick mix and chill.

Ingredients

• 1/2 cup creamy peanut butter (no sugar added)
• 2 tablespoons coconut oil, melted
• 1 tablespoon powdered erythritol or allulose
• 4 slices bacon, cooked until very crispy and crumbled
• 1/4 teaspoon sea salt flakes (optional, for topping)

Instructions

1. In a small bowl, stir together the peanut butter, melted coconut oil, and powdered sweetener until smooth and well combined.
2. Fold in the crumbled bacon bits, reserving a tablespoon for garnish.
3. Line a small plate or tray with parchment paper. Scoop tablespoon-sized portions of the mixture and roll into balls. Place on the prepared tray.
4. Sprinkle the reserved bacon bits and a pinch of sea salt flakes on top of each ball, pressing gently so they stick.
5. Refrigerate for at least 30 minutes, until firm. Store in an airtight container in the fridge for up to a week.

Serving Tip

For extra crunch, use thick-cut bacon and cook it until it's almost brittle. You can also swap the bacon for turkey bacon or omit it entirely for a vegetarian version—just add a pinch of smoked paprika to keep that smoky kick.

4. Frozen Peanut Butter Fudge Bites

Straight from the freezer, these dense, fudge-like bites offer a bold peanut butter punch that softens into a creamy, melt-in-your-mouth texture as they thaw. Coconut oil is the secret here, creating that rich, indulgent mouthfeel without any dairy. They're the ultimate grab-and-go snack for when you need a quick, satisfying treat that feels anything but diet food.

Ingredients

• 1/2 cup natural peanut butter (no sugar added)
• 1/4 cup coconut oil, melted
• 2 tablespoons powdered erythritol
• 1/2 teaspoon vanilla extract
• Pinch of salt

Instructions

1. Line a mini muffin tin with 6 silicone or paper liners.
2. In a small bowl, whisk together the peanut butter, melted coconut oil, powdered erythritol, vanilla extract, and salt until smooth and fully combined.
3. Divide the mixture evenly among the prepared muffin cups, filling each about three-quarters full.
4. Tap the tin gently on the counter to release any air bubbles, then place in the freezer for at least 2 hours, until firm.
5. Pop the bites out of the liners and store in an airtight container in the freezer for up to 3 months.

Serving Tip

For the best texture, let the bites sit at room temperature for 2–3 minutes before eating. They'll soften just enough to feel like fudge without becoming messy.

5. Spicy Peanut Butter Sriracha Bombs

Heat meets creamy peanut butter in these savory-sweet fat bombs that break the mold. A dash of sriracha and a pinch of cayenne turn a classic snack into something bold and unexpected. They're perfect for when you crave a little fire with your fat.

Ingredients

• 1/2 cup natural peanut butter (no sugar added)
• 1/4 cup coconut oil, softened
• 2 tablespoons sriracha sauce (adjust to taste)
• 1/2 teaspoon cayenne pepper (optional, for extra heat)
• 1 tablespoon powdered erythritol (or to taste)
• 1/4 teaspoon sea salt

Instructions

1. In a medium bowl, combine peanut butter, softened coconut oil, sriracha, cayenne (if using), erythritol, and salt. Stir until smooth and well blended.
2. Taste and adjust heat or sweetness as desired. The mixture should be thick but scoopable.
3. Line a small baking sheet or plate with parchment paper.
4. Using a small cookie scoop or spoon, form the mixture into 12 bite-sized balls and place on the prepared sheet.
5. Freeze for at least 30 minutes until firm. Transfer to an airtight container and store in the fridge or freezer.

Serving Tip

These bombs pack a punch, so start with one and see how you feel. They're fantastic as a pre-workout energy boost or a bold afternoon pick-me-up. For a milder version, reduce sriracha to 1 tablespoon and skip the cayenne.

6. Peanut Butter Cookie Dough Bites

Cookie dough that’s safe to eat raw—and keto-friendly? Yes, please. These bites capture that nostalgic, just-licked-the-spoon flavor using almond flour and a splash of vanilla.

The texture is soft, slightly crumbly, and perfectly indulgent. They’re bold enough to satisfy a sugar craving but practical enough to whip up in 10 minutes flat.

Ingredients

• 1/2 cup natural peanut butter (no sugar added)
• 2 tablespoons melted coconut oil
• 2 tablespoons powdered erythritol
• 1/2 cup almond flour
• 1 teaspoon vanilla extract
• Pinch of salt
• 2 tablespoons sugar-free chocolate chips (optional)

Instructions

1. In a medium bowl, stir together peanut butter, melted coconut oil, powdered erythritol, and vanilla until smooth.
2. Add almond flour and salt. Mix until a soft dough forms. If the dough seems too dry, add 1 teaspoon of water at a time until it holds together.
3. Fold in sugar-free chocolate chips if using.
4. Roll the dough into 12 equal-sized balls. Place on a parchment-lined tray.
5. Refrigerate for at least 30 minutes until firm. Store in the fridge.

Serving Tip

Keep these bites chilled until just before serving. They soften quickly at room temperature, so pop them back in the fridge if you’re not eating them all at once. For an extra treat, drizzle with melted sugar-free chocolate and let set.

7. Coconut Peanut Butter Truffles

Shredded coconut adds texture and tropical flair. Rolled in extra coconut for a pretty finish and extra chew. These truffles are bold and indulgent, perfect for when you want a treat that feels like a splurge but keeps you on track.

They come together in minutes and store beautifully.

Ingredients

• 1/2 cup natural peanut butter (no sugar added)
• 1/4 cup coconut oil, softened
• 2 tablespoons powdered erythritol
• 1/2 cup unsweetened shredded coconut, plus more for rolling
• 1/4 teaspoon vanilla extract
• Pinch of salt

Instructions

1. In a medium bowl, mix peanut butter, coconut oil, erythritol, 1/2 cup shredded coconut, vanilla, and salt until well combined.
2. Chill the mixture in the fridge for 15-20 minutes until firm enough to shape.
3. Scoop tablespoon-sized portions and roll into balls.
4. Roll each ball in extra shredded coconut to coat evenly.
5. Place on a parchment-lined tray and refrigerate for at least 30 minutes before serving.

Serving Tip

Store these truffles in an airtight container in the fridge for up to a week. They also freeze well for up to 3 months—just let them thaw for a few minutes before eating.

8. Peanut Butter and Jelly Fat Bombs

Swirled with sugar-free strawberry jam for a nostalgic PB&J twist. A fruity, creamy bite that feels like a treat.

Ingredients

• 1/2 cup natural peanut butter (no sugar added)
• 1/4 cup coconut oil, softened
• 2 tablespoons powdered erythritol
• 1/2 teaspoon vanilla extract
• Pinch of salt
• 3 tablespoons sugar-free strawberry jam

Instructions

1. In a bowl, mix peanut butter, coconut oil, powdered erythritol, vanilla, and salt until smooth.
2. Line a mini muffin tin with 8 silicone liners.
3. Divide the mixture evenly among the liners, filling each about 3/4 full.
4. Drop a small dollop (about 1/2 teaspoon) of sugar-free jam onto each fat bomb.
5. Use a toothpick to gently swirl the jam into the peanut butter mixture.
6. Freeze for at least 30 minutes until firm.
7. Store in the fridge for up to 2 weeks or freeze for longer storage.

Serving Tip

Let these sit at room temperature for 2-3 minutes before eating for the perfect soft-yet-firm texture. They're ideal for lunchbox treats or a quick afternoon pick-me-up.

9. Mocha Peanut Butter Energy Bombs

Coffee and peanut butter join forces in these bold, energizing fat bombs. A touch of cocoa deepens the flavor, making each bite feel like a mini indulgence. They're perfect for a morning boost or an afternoon pick-me-up without the dreaded crash.

Ingredients

• 1/2 cup natural peanut butter (no sugar added)
• 1/4 cup coconut oil, softened
• 2 tablespoons unsweetened cocoa powder
• 1 tablespoon instant coffee granules
• 2 tablespoons powdered erythritol or allulose
• 1/2 teaspoon vanilla extract
• Pinch of sea salt

Instructions

1. In a medium bowl, combine peanut butter, coconut oil, cocoa powder, instant coffee, sweetener, vanilla, and salt. Stir until smooth and well blended.
2. Line a small baking sheet or plate with parchment paper.
3. Using a small cookie scoop or spoon, form the mixture into 12 balls (about 1 tablespoon each). Place on the prepared sheet.
4. Freeze for at least 30 minutes until firm. Store in the refrigerator or freezer.

Serving Tip

Keep these in the freezer for a grab-and-go energy boost. They soften quickly at room temperature, so pop one straight from the freezer into your bag for a mid-morning treat.

FAQ

Can I use natural peanut butter for these fat bombs?

Yes, but make sure it's unsweetened and well-stirred. Natural peanut butter can be oilier, so you may need to adjust the amount of coconut oil or chill longer.

How long do keto peanut butter fat bombs last?

Store them in an airtight container in the fridge for up to 2 weeks, or freeze for up to 3 months. They're perfect for meal prep.

Are these fat bombs suitable for nut allergies?

No, they contain peanuts. For a nut-free version, substitute with sunflower seed butter or tahini, but note the flavor and texture will change.

Can I use powdered peanut butter instead?

Yes, but you'll need to rehydrate it with a little water or oil. The texture will be less creamy, so consider adding extra fat like coconut oil.

How many carbs per fat bomb?

It varies by recipe, but typically 1-3g net carbs per bomb. Always check your specific ingredients, especially if using sweeteners or add-ins.

Conclusion

These nine keto peanut butter fat bomb recipes prove that snack prep can be both indulgent and practical. From classic creamy bites to bold savory twists, there's a flavor for every craving.

Make a batch (or two) and keep your keto journey deliciously on track. Happy snacking!