10 Scrumptious Keto Peanut Butter Fudge Recipes

10 keto peanut butter fudge recipes

The keto diet, short for the ketogenic diet, is a low-carb diet that targets weight loss. The aim is to get more calories from protein and fat and less from carbohydrates.

It involves cutting out carbs that are easily digested such as sugar and white bread. The idea is for your body to go into ketosis mode, which is when your body starts using your protein and fat for energy, rather than carbs.

It’ll take around 3 to 4 days for this to happen, and it occurs once you start to eat less than 50 grams of carbs a day. Your body will run out of fuel and then start to break down the protein and fat you’ve consumed in order to give you energy.

There may be various reasons you’ve decided to be on this diet for now, but it does not mean you can’t enjoy some delicious treats. We’ve compiled a list of 10 wonderful keto-friendly peanut butter fudge recipes for you. 

Since Fudge is a super sweet and sugary treat, you may be wondering how on earth can someone on a keto diet consume that. It’s fairly simple, the trick is to find some good substitutes when it comes to the ingredients. 

A Guide On What Ingredients To Use For Keto-Friendly Fudge

Peanut Butter

When looking for peanut butter to purchase, those on a keto diet are advised to read the ingredients carefully. Some brands will include added sugar or honey, which in turn will increase the carb count.

It is best to stick with plain peanut butter that contains only peanuts and salt. 


As keto is a low sugar, low carb diet, people are advised to turn to sweeteners. They are attractive alternatives to sugar as they add barely any calories to your diet.

There are numerous brands of sweeteners out there that are great for adding to recipes as you will see in our list of keto-friendly fudges. 


When it comes to fudge, many recipes include chocolate, especially when it comes to peanut butter fudge. Those on a keto diet are advised to choose dark chocolate containing at least 70% cocoa solids.

If it contains a higher percentage, that would be even better. 

Net Carbs 

In some of these recipes, you’ll be told how many net carbs are in them. Net carbs are the carbs in food that will be digested and used for energy.

If you wanted to calculate the number of net carbs in a food, you would take the total number of carbs and subtract the amount of fiber that is in it.

Our bodies don’t have appropriate enzymes to break down fiber, so it just passes through our system. Net carbs are important for the keto diet because if you consume too many, your body won’t stay in ketosis.

A general recommendation for the number of net carbs you should have on a keto diet is around 20 grams or less per day. 

Below is a list of 10 keto peanut butter fudge recipes. Click on the links for full ingredient measurements. 

1. Maebells Keto Peanut Butter Fudge

Maebells Keto Peanut Butter Fudge
Source: Maebell’s

This low-carb fudge makes it the perfect keto snack. It can also be called a keto fat bomb. The keto diet includes consuming foods that are high in fat.

When people on this diet have fat as their primary energy source, they have snacks known as fat bombs, foods that are low in carbs and high in fat. They can be sweet or savory.

This recipe only has 3 ingredients, butter, swerve brown sugar sweetener, and peanut butter. The recipe is pretty simple, just melt the butter and add the brown sugar. Once this has thickened, add the peanut butter.

You’ll be left with a wonderful, creamy little fat bomb. 

2. Keto Peanut Butter Fuge with Cream Cheese

Keto Peanut Butter Fuge with Cream Cheese
Source: Low Carb Yum

 This keto recipe incorporates cream cheese, making this an option that is high in fats, perfect for anyone on a keto diet.

The cream cheese also gives it a much creamier texture than other recipes so if that’s something that appeals to you, it’s worth giving it a try. 

3. Keto Chocolate Peanut Butter Fudge

A sugar-free fudge that is not only perfect for those on a keto diet, but also for those with diabetes. This rich and satisfying treat contains grass-fed butter, butter that has more nutrients than regular butter, for an extra creamy result.

Using 90% dark chocolate by Lindt which only has 7 grams of sugar per 100g bar. Another tip for this one is to make sure the peanut butter you use is purely just made from peanuts, as many stores add other ingredients to it.

Don’t let the sugar-free description fool you this option is still deliciously sweet. 

4. Keto Peanut Butter Fudge with Collagen Powder

This option differs from the previous ones we’ve looked at as it contains collagen powder. This nutrient helps muscle recovery and promotes healthy skin and hair.

Using this powder in this recipe allows you to reduce the amount of sweetener you are using while still getting that creamy fudge texture. 

5. Keto Peanut Butter Chocolate Chip Fudge

This variation has a few more ingredients than the others on this list. The added extras here are heavy whipping cream and chocolate chips.

The process is still simple though. You’ll begin by heating up the whipping cream with the butter in a pan until they melt together.

Then add some powdered sweetener and continue to cook until it thickens. Once this has happened, you are to remove the mixture from the heat and add in the peanut butter and vanilla extract.

Your last step before putting it in the refrigerator is to cool it and add the chocolate chips. Then pop it into the refrigerator to cool for around 4 hours. 

6. Keto Chocolate Peanut Butter Fudge Cups 

This deliciously low-carb recipe only has 2 ingredients! All you need is some creamy peanut butter and some low-carb chocolate chips.

All you need to do is pour the chocolate chips and peanut butter into a microwaveable bowl. Melt these together until smooth.

It is important to note, that when melting these ingredients in the microwave, you must ensure to do it in 30-second intervals to avoid the ingredients from burning and drying out.

Then pour the mixture into some little muffin cups and leave them to chill until they are firm. You are then left with some adorable little keto cups! 

7. Chocolate Peanut Butter Keto Fat Bombs with Coconut Butter 

By including coconut butter in this recipe it ensures you are consuming more fat, which is what you want on a keto diet. Coconut butter has more healthy fats than regular butter, making this little snack a great fat bomb.

The 3 ingredients needed are coconut butter, peanut butter, and some raw cacao butter. If you’d like some extra sweetness, then this recipe recommends low-carb monk fruit sweetener, made from the fruit’s extracts, making it a much healthier sweetener than sugar. 

8. Keto White Chocolate Peanut Butter Fudge 

This 4 ingredient recipe is super creamy and delicious. All you will need is peanut butter, keto white chocolate chips, vanilla extract, and salt.

Another simple method is used here. All you need to do is add the chocolate chips and peanut butter to a microwavable bowl and heat them up in 30-second intervals.

Be sure to stir after each one until the texture is smooth and everything has melted. Add your salt and vanilla, and combine everything together. Then place the mixture onto your prepared dish and freeze for 1 hour. 

9. Keto Tiger Butter

Keto Tiger Butter
Source: Choc Zero

This option appears to be combining all that we’ve mentioned in this list so far, in one single dreamy fudge batch. It is a peanut butter white chocolate fudge with melted dark chocolate swirls, and yes, it is sugar-free and low carb which we already know is perfect for the keto diet.

What you’ll need is peanut butter, white chocolate chips, cocoa butter, powdered sweetener, heavy whipping cream, dark chocolate chips, and vanilla extract. This is another recipe that simply just involves mixing everything together and letting it cool. 

10. Keto Salted Caramel Peanut Butter Fudge 

This salted caramel peanut butter fudge will have you salivating at the mouth. The secret to getting that salted caramel flavor and texture is by including imitation caramel flavoring, and pink Himalayan salt.

Begin by mixing peanut butter and salted butter in the microwave in 30-second increments. Then add your caramel and use a hand mixer to beat it all together.

Then add some swerve sweetener and continue to beat it. Once this is at the desired texture, add the fudge to a pan with parchment paper and sprinkle some of the salt on top.

Let it cool in the fridge for two hours and there you have it! 

Final Thoughts 

As mentioned earlier, the keto diet is one to be used when you want to lose weight. It’s important to note, that it is not a diet designed to be sustainable in the long term.

However, if you are taking part in it for a period of time, it’s good to know that you are still able to indulge in some sweet treats like the ones on this list.

The replacements for sugar and carbs do make these options a lot healthier than they would be normally, which would be an added benefit to anyone trying these recipes. 


Hi, I'm Sarah and welcome to Call Me Fudge! From a younger age I've always pottered about in the kitchen and even selling my fudge in the high school grounds. Cooking and baking to me is like second nature and I want to share this passion with you.

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