The best 3-ingredient Keto Peanut Butter Fudge! Simple to make, no-bake, and less than 2 net carbs per serving!
I’ve got the easiest keto treat for you today! This Keto Peanut Butter Fudge Fat has three ingredients and takes just a few minutes to make. These fudge bites have a caramel base that adds a rich flavor you will love. Top with a little sea salt for a decadent keto treat!
What I love most about this low-carb peanut butter fudge is that it can be enjoyed as a dessert or as a fat bomb. The ketogenic diet is a low carb, high fat diet.
When on keto your primary energy source is fat, so people often add fat bombs to their diet to meet their quota or add a little boost. Fat bombs can be sweet or savory, but they must be low in carbs and high in fat. Whether you enjoy this recipe as classic no-bake peanut butter fudge or as fat bombs, you’re going to love it!
Ingredients in Keto Peanut Butter Fudge
These Peanut Butter Fudge Fat bombs are made with three basic ingredients: butter, brown sugar Swerve (or another no-calorie brown sugar substitute) and peanut butter.
Because this recipe is so simple, I don’t recommend making substitutions. However, I’ve given my best tips and advice for substituting ingredients in the section below.
Recipe Substitutions to Try for Peanut Butter Keto Fudge
You will find this recipe has the best flavor and results with real butter and the brown sugar swerve.
If you swap out the brown sugar Swerve for granular Swerve, it will lack the same rich caramel flavor that the brown sugar version provides. However it will still be sweet and delicious, just not quite the same.
You definitely can switch the peanut butter for a different nut butter, just make sure it is a low carb/no sugar added version to keep your carbs at bay.
How to Make Keto Peanut Butter Fudge Fat Bomb
I love how simple this peanut butter fudge recipe is! Here’s an overview of how the no bake peanut butter fudge is made:
- Heat a medium size saucepan over medium heat
- Melt the butter and add the brown sugar Swerve. Stir continuously until the sugar dissolves and a thick brown caramel begins to form.
- When the sauce is thickened and looks like caramel, remove from heat and stir in the peanut butter until melted.
- Spoon into a silicone mini muffin pan and freeze for 15 minutes or until set.
- Top with sea salt as desired.
Tips for the Best 3 Ingredient Keto Peanut Butter Fudge
- You could pour this mixture into a wax paper-lined pan and make traditional fudge, but I love to use these silicone muffin pans because they pop right out and there is no waste.
- This recipe made 30 mini muffin-sized pieces of fudge when I filled my muffin pans 3/4 full.
- I recommend storing the low-carb peanut butter fudge in the freezer.
More Keto Peanut Butter Desserts:
- Chocolate Peanut Butter Fat Bombs
- Low-Carb Crockpot Candy
- Keto Peanut Butter Cheesecake Truffles
- No-Bake Peanut Butter Cookies
- Keto Peanut Butter Brownies
Keto Peanut Butter Fudge Fat Bombs
The best THREE INGREDIENT Keto Peanut Butter Fudge Fat Bombs! Less than two net carbs per serving and so easy!
- 8 tablespoons butter (1 stick)
- 1/2 cup brown sugar swerve sweetener
- 1 cup peanut butter
- Heat a medium size sauce pan over medium heat
- Melt butter and add brown sugar, stir continiously until sugar disolves and a thick brown caramel begins to form. This usually takes 6-8 minutes for me. (see video below)
- When the sauce is thickened and looks like caramel remove from heat and stir in the peanut butter until melted.
- Spoon into a silicone mini muffin pan and freeze for 15 minutes or until set. (This made 30 mini muffin size fudge bites for me when I filled the trays 3/4 full)
- Top with sea salt as desired.
- Store in freezer.
Watch the video below to see exactly how to create these delicious fat bombs!
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Nutrition Information:Yield: 30 Serving Size: 1 peanut butter cup
Amount Per Serving: Calories: 79Total Fat: 7.5gCarbohydrates: 1.9gFiber: 0.4gSugar: 0.9gProtein: 1.9g
Nutrition is calculated by a third party nutrition app.
Omg!!! That caramel sauce! These are insanely good, thank you! All my other keto treats take a while to make but this one is so easy!
Dorothy Reinhold says
The perfect option when you need a sweet treat!
Jacquelyn Hastert says
I am making these tomorrow! We have joined the keto lifestyle and I can’t wait to make these to satisfy my sweet tooth.
Beth Pierce says
Wow! I can probably taste these just looking at the recipe! So easy and delicious too!
I am drooling over these bombs! How fabulous they look!
Sara Welch says
Looking forward to making these later this afternoon; love a delicious peanut butter treat!
Michelle Goth says
I have such a tough time on keto because I crave sweets so badly! I can’t wait to try these!
Teresa Lewis Watts says
What peanut butter(s) do you recommend? I have powdered & regular, so want to know what you use for the best flavor. Thank you!
Hi Teresa, I use regular creamy peanut butter for this recipe 🙂 I hope you enjoy!
These look great. Have you tried adding cream cheese or do you think it would ruin the recipe?
Hey Kim, I haven’t tried it with cream cheese so I really can’t say but I can tell you it’s pretty tasty as is! 🙂
Can you use a regular pan instead of the silicone?
I think you would have a really hard time getting them out of a regular pan. You can line a loaf pan with wax paper and pour the mixture in, let it chill then slice like fudge though. I hope that helps!
Brown sugar and butter mixture never carmalized, just burned and filled the house with smoke. I had the stove on medium heat and even turned it down. What did I do wrong??
Kristen, did you watch the video? We make this once a week and never have a problem. It sounds like the heat might have been too high and maybe you didn’t stir consistently?
Linda Holland says
Did you use regular or natural peanut butter.
Hi Linda, you want peanut butter that does not naturally separate.