Keto Peanut Butter Fudge
This is the ultimate easy Keto Peanut Butter Fudge recipe with only 2 grams of net carbs per serving! It’s so creamy, delicious, and only requires 2 simple ingredients! Every bite of this fudge melts in your mouth, and it’s hard to believe it’s low-carb, keto, gluten-free, and grain-free.
Fudge has always been an indulgence for me. When you take that first bite of creamy low carb fudge, it’s pure heaven. It’s always a hit during the holidays, but this recipe is so easy you can eat it year-round. Two-ingredient fudge is one of my favorite easy keto recipes. So much so that I have a similar recipe for Keto Chocolate Fudge!
If you love peanut butter and are heading out to a party, take a batch of this creamy sugar free fudge. The creamy texture of delicious keto fudge is the best thing for a sweet craving for keto dieters.
If you love sweet treats with peanut butter, make sure to try my Keto Peanut Butter Balls and Keto Peanut Butter Cheesecake next time.
Ingredients
I wasn’t kidding when I said you only need 2 ingredients. Not only does it taste incredible, but it’s also not going to cost you a lot to make it either.
Sugar-Free White Chocolate Chips – I used ChocZero white chocolate chips because they melt really easily but other brands without added sugars should work.
Natural Peanut Butter – Make sure to choose one without added sugar. I use creamy peanut butter. If you want a little more texture in your fudge go ahead and use crunchy peanut butter!
How to Make Keto Peanut Butter Fudge
Step One: Melt the sugar-free white chocolate chips with the peanut butter in a microwave-safe bowl in the microwave. Stir every 30 seconds until melted.
Step Two: Pour the melted chocolate peanut butter mixture into a mini loaf pan that has been lined with a piece of parchment paper. Alternatively, you can grease a shallow pan very well with coconut oil.
Place the keto peanut butter fudge mixture in the fridge for 4-6 hours or overnight until it’s set.
Cut, serve, and enjoy! The nutrition facts are based on 16 servings. Since fudge is so rich a small piece should satisfy your sweet tooth. You can slice it into thin slices, or thick slices and then cut it into cubes. Store the low-carb fudge recipe in an airtight container at room temperature for a few days in the fridge for up to a month.
Variations
- Crushed Peanuts – They will give the homemade peanut butter fudge a crunch and looks pretty too. Crush up ⅛ – ¼ cup and sprinkle on top.
- Sugar-Free Chocolate Chips – Use some sugar free chocolate chips in any flavor and add them to the top of the fudge. Dark chocolate will look fabulous and help you with your craving for chocolate.
- Salt – A little bit of flaky salt would be a nice touch and give you some added flavor. If you use salted peanut butter, you may want to skip extra salt, so it’s not too much.
- Vanilla – Add a teaspoon of vanilla extract to boost the flavors.
- Nuts – Pecans or walnuts are great options to add to the fudge too.
- Peanut Butter Cups – Chop some sugar free keto peanut butter cups and mix them in or sprinkle on top.
- Truffles – Add a few ounces of cream cheese for a softer set. Then just chill, scoop, roll into balls, and coat with powdered sweetener. These are great fat bombs!
Want more peanut butter dessert recipes? Try this Keto Peanut Butter Ice Cream.
Common Questions
Is All Peanut Butter Low-Carb? Is Peanut Butter Keto?
No, not all peanut butter is going to work on a keto diet. It’s vital to check the labels and choose a peanut butter that is all-natural. It should only be made with peanuts. If you find some that have peanuts and a little bit of salt, that’s okay too.
Peanut butter becomes a problem when it’s filled with sugars and other ingredients that aren’t keto-friendly. As long as you read the labels, you shouldn’t have any trouble finding a sugar free peanut butter that will work for you.
Can I Use Different Kinds Of Nut Butter?
Sure! If you have a peanut allergy or ran out but still have a craving for fudge, you can totally swap it out. Use any of your favorite keto-friendly nut butter and follow the same directions. The flavor is going to taste different, so you are going to want to consider that when deciding what to use. Almond butter or cashew butter would be pretty tasty options.
Additionally, you can swap the nut butter for seed butter as well. Sunflower seed butter is another great option to consider.
Is It Okay To Make The Fudge On The Stovetop?
Yep, if you’d rather make it on the stovetop instead of the microwave, that’s fine. BUT you need to use a double boiler and stir it continuously over low heat. You don’t want it to burn, or it will ruin the fudge.
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Keto Peanut Butter Fudge
Equipment
Ingredients
- 7 oz sugar-free white chocolate chips
- 1/2 cup peanut butter
Instructions
- Melt the white chocolate chips and peanut butter in the microwave, stirring every 30 seconds.
- Transfer to a mini loaf pan lined with parchment paper.
- Refrigerate until set at least 4-6 hours, preferably overnight.
Notes
Nutrition
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Originally Published Dec 16, 2020. Revised and Republished October 1, 2025.
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Well I could not find the sugar free white chocolate chip but only the sugar free chocolate ones so and I used crunchy peanut butter too it’s chilling now can’t wait to try it.
It’s simple & quick & smooth as silk. Even my very over Wright best friend that hates anything “diet”, loved it!
So easy and so delicious! I didn’t have white chocolate chips but had some sugar free butterscotch chips in the freezer and the taste was amazing! I made it with almond butter. So good! Thank you.
Can I use sugar free peanut butter chips instead of peanut butter? Trying to find easy recipes..
Mine are chilling now. Can’t wait! Thanks for sharing.
Needed something quick to satisfy my sweet tooth and it was perfect! I put them in the freezer and was able to eat one pretty quickly.
Also, if you can only eat 1/16 of this recipe, I admire your will power 🤪
First time and it is wonderful. Ty
Loved it!
This was as easy as you said! I also melted Lily’s Milk Chocolate chips and swirled it on top…can’t wait to try this!
No way! Cant be this easy. It is and omg I’m in love! Thank you so much. I had the bake believe white chips and I have LOTS of natural, no sugar peanut butter. This is great. I can’t wait to make it again with crunchy peanut butter next. Also for those who like Pb and choc, they could switch up the chips, I prefer it this way! Excellent and easy. Now cutting it is a bit tricky lol.