Easy Keto Peanut Butter Fudge Recipe - 3 Ingredients & Minutes To Make! (2024)

by Denise 7 Comments

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If you love peanut butter, this easy keto peanut butter fudge recipe is going to be your new best friend! You only need 3 ingredients and a few minutes to make this tasty, sugar free fudge. Store it in the freezer for a quick low carb snack! Only 1.1g net carbs per serving.

You might also like this keto peanut butter cheesecake mousse!

Easy Keto Peanut Butter Fudge Recipe - 3 Ingredients & Minutes To Make! (1)

I am a peanut butter person and have been known to eat an apple just so I could have some peanut butter with it. So over Christmas an old friend made some peanut butter fudge for me and I could not resist. It was so good but it had so many carbs and that is why I came up with this easy keto peanut butter fudge recipe.

Its super easy with only 3 ingredients and it only takes a few minutes to whip up. I shared some with my diabetic father as well as my hubby and son and they all gave it a thumbs up! The best part is each piece only 1.1g net carbs! Trust me you only need 1 piece but even if you had two or three it won’t blow your diet. Now let me show you how to make some sugar free peanut butter fudge!

Easy Keto Peanut Butter Fudge Recipe - 3 Ingredients & Minutes To Make! (2)

3 Ingredients For Low Carb Peanut Butter Fudge

I have tried this a few ways and I still have a little more experimenting to do. However today’s batch was perfect and all I used was natural peanut butter, Swerve confectioners sweetener and butter. That is all.

If you like keto sweet treats I recommend buying a big bag of Swerve confectioners online. It’s cheaper and I use this for all my sweet recipes. They make a granular one and it’s good but this seems to work better. I also like Swerve brown sugar sweetener. It’s just like regular brown sugar with 0g net carbs.

Easy Keto Peanut Butter Fudge Recipe - 3 Ingredients & Minutes To Make! (3)

Low Carb Peanut Butter

I really like this brand of peanut butter from Aldi. It doesn’t have any added sugar and there are 4g net carbs per 2 tablespoons which is pretty good for peanut butter. There are also many low carb brands on Amazon. I know people have talked about Teddie all natural peanut butter. I have not tried it personally but it has the same macros as the Aldi brand I used.

Easy Keto Peanut Butter Fudge Recipe - 3 Ingredients & Minutes To Make! (4)

How To Make Keto Peanut Butter Fudge!

Make sure you butter is softened. If you are in a hurry (and I’ve done this) you can microwave the butter for 15 seconds or so to make it softened. But it’s better to do it the right way because if you get it wrong in the microwave it will liquify too much and not work in the recipe. So watch it carefully.

In a mixing bowl cream the butter and Swerve confectioners sweetener until nice and creamy. Then add in the peanut butter and mix again until well combined. It should look like the photo above.

Easy Keto Peanut Butter Fudge Recipe - 3 Ingredients & Minutes To Make! (5)

Next spoon it into your containers. I used these two smaller glass containers. I wasn’t sure I had enough for a larger glass dish so I had to use two. Smooth it with a spoon or spatula. I had a little trouble getting it perfect but I didn’t care. I just wanted to eat it!

NOTE: if you want to make it easier to come out of the container, line the container first with wax or parchment paper. Cut it so the ends come all the way up the sides so you can lift it the whole thing out by the paper to cut into squares.

I did not do that and it still came out fine but I was impatient and if I did that it might have have looked a little neater.

Easy Keto Peanut Butter Fudge Recipe - 3 Ingredients & Minutes To Make! (6)

As you can see above my squares were not so neat and smooth on top. If that bothers you for some reason, note that you can cut the uneven part off and make it look more perfect. I’m telling you in case you wanted to give this as a gift.

Easy Keto Peanut Butter Fudge Recipe - 3 Ingredients & Minutes To Make! (7)

Easy Keto Fudge Recipe Notes And Tips

  • This only requires 3 ingredients but it’s important you use the lowest carb peanut butter you can find and the Swerves confectioner sweeter. Granular sweetener may make it grainy because you are not heating it to make it dissolve.
  • Line your containers with wax paper or parchment paper if you want to make it easier to cut when it’s done.
  • This recipe made 28 pieces of fudge. The nutritional information will change if you make bigger or smaller pieces. I felt 1 piece was very satisfying because it’s so sweet but you can play around with the size to fit your the amount of carbs you want to have.
  • Please store this in the freezer or refrigerator because it can get pretty soft if left out. I keep it in the freezer and grab one when I want something sweet and it’s still soft enough to eat.

Well I thoroughly love this recipe and I can’t wait to try more flavors. If you crave something sweet every now and then this is a good one to keep in the freezer. Also I like to make this diabetic fudge for my father in law so he can indulge and not worry about his sugar. So if you have a diabetic in your life this is a nice keto dessert for them to try.

The nutritional information based on 28 pieces for 1 piece is:

112 cals / 11.2g fat / 2g carbs / 0.9g fiber / 2.4g protein = 1.1g net carbs

For another delicious keto peanut butter dessert check out my friend Annissa’s keto peanut butter pie!

Easy Keto Peanut Butter Fudge Recipe - 3 Ingredients & Minutes To Make! (9)

Keto Peanut Butter Fudge

Yield: 28

Prep Time: 5 minutes

Additional Time: 2 hours

Total Time: 2 hours 5 minutes

If you love peanut butter, this easy keto peanut butter fudge recipe is going to be your new best friend! You only need 3 ingredients and a few minutes to make this tasty, sugar free fudge. Store it in the freezer for a quick low carb snack! Only 1.1g net carbs per serving.

Ingredients

  • 1 cup peanut butter, no sugar added
  • 1 cup butter, softened
  • 2 cups Swerve powdered sweetener

Instructions

  1. Add the butter and Swerve to a mixing bowl. Cream together.
  2. Add in the peanut butter and mix until nice and creamy.
  3. Spoon into a baking dish and either freeze or refrigerate until hardened. It should take about 2 hours.
  4. Take out and cut into squares and place in a sealed container and store in the refrigerator or freezer. The fudge can get soft so I don't recommend keep it out on the counter.

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Nutrition Information:

Amount Per Serving:Calories: 112Net Carbohydrates: 1.1g

Easy Keto Peanut Butter Fudge Recipe - 3 Ingredients & Minutes To Make! (12)

More Gluten Free

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  • Keto Cheese Chips Recipe

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Nutritional information for the recipe is provided as a courtesy and is approximate only. You should always do your own calculations if you are concerned about the accuracy of this or any recipe. I use the Lose It app for all of my nutritional information because I have for years.

Comments

  1. Va “Tedi” Rankin

    What size baking dish did you use?

    Reply

    • Denise

      Hi Tedi, I used two small glass dishes – one was about 4.5″x6.5″ and the other was 5″x5″. You can use any size baking dish you want. That will just effect the size of the pieces you cut. Here is the nutrition information for the whole batch. You can then divide by the number of pieces that you make yourself. Hope that makes sense. Please let me know if you have any other questions.

      3,149 cals / 312.3 fat / 56.1g carbs / 24g fiber / 65.9g protein = 32.1g net carbs (whole recipe)

      112 cals / 11.2g fat / 2g carbs / 0.9g fiber / 2.4g protein = 1.1g net carbs

      Reply

  2. Kathleen

    So sweet and so easy. Thank you! I’m in love💖

    Reply

    • Denise

      So glad you like it Kathleen! It is really easy….

      Reply

  3. Debbie

    This looks like bites of perfectness. Peanut butter is my weakness, it needs to be in my life.

    Reply

  4. Rachel Miller

    Hi.
    I love the sound of this….. however I didn’t think you could have peanut butter on Keto?

    Reply

Leave a Reply

Easy Keto Peanut Butter Fudge Recipe - 3 Ingredients & Minutes To Make! (2024)

FAQs

Why did my peanut butter fudge not get hard? ›

If you didn't reach the correct temperature during the cooking process, it might not set properly. Use a candy thermometer to ensure that you reach the recommended temperature. Overcooking or Undercooking:Solution: Cooking the fudge for too long or too short a time can affect its texture.

How to make a fudge set? ›

If your fudge turned out super sticky, or it didn't set as it cooled, it probably never got hot enough. This mistake is super easy to avoid if you use a candy thermometer and cook the fudge to the temperature specified in the recipe (usually between 234 and 239°F).

How many carbs in a piece of peanut butter fudge? ›

Homemade Peanut Butter Fudge (1 piece) contains 12.4g total carbs, 12.3g net carbs, 1.1g fat, 0.6g protein, and 62 calories.

Why is my peanut butter fudge dry and crumbly? ›

There are 2 reasons that fudge will crumble: overcooking & having an undissolved sugar crystal in the mixture. That undissolved crystal will cause the dissolved sugar to recrystalize (think rock candy).

What is the secret to good fudge? ›

Tips for Making Fudge
  • Monitor the Temperature with a Candy Thermometer. If you end up with soft fudge that turns into a puddle in your hands or hard fudge that is a bit reminiscent of a crunchy candy, improper temperature is likely to blame. ...
  • Avoid Stirring Once the Mixture Comes to a Simmer. ...
  • Beat Thoroughly.
Mar 8, 2023

What is the secret to smooth fudge that is not gritty? ›

Once a seed crystal forms, it grows bigger and bigger as the fudge cools. A lot of big crystals in fudge makes it grainy. By letting the fudge cool without stirring, you avoid creating seed crystals.

Is condensed milk the same as evaporated milk? ›

Both are concentrated, shelf-stable milk products that have been heated until at least 60 percent of their water content has evaporated. The main difference between evaporated milk and condensed milk is that evaporated milk is unsweetened while condensed milk is sweetened.

What makes fudge hard or soft? ›

Fudge usually behaves this way when it's not cooked to a high enough temperature (due to oversight or a faulty candy thermometer). If your fudge is tough, hard, or grainy, then you may have made one of several mistakes: You may have overcooked it, beaten it too long, or neglected to cool it to the proper temperature.

How do you fix peanut butter fudge that didn't set? ›

OPTION 3) Sieve together some powdered sugar and cocoa powder, and gradually work this into your unset fudge until it reaches the consistency of dough, then roll out and cut into squares, or shape into balls and then roll in powdered sugar (roll the balls in icing sugar, not yourself).

How many carbs are in peanut butter for Keto? ›

Is peanut butter keto-friendly?
Smooth peanut butter ( 3 )Reduced fat peanut butter ( 6 )
Calories191166
Total carbs7 grams11 grams
Fiber2 grams2 grams
Net carbs5 grams9 grams
Aug 5, 2022

Is no sugar added peanut butter low carb? ›

Peanut butter is high-fat, low-carb—unless you're buying flavored peanut butters that load up on one threat to ketosis: sugar.

How many carbs are in peanut butter without sugar? ›

Zimmerman's Natural Peanut Butter No Sugar Added (2 tbsp) contains 7g total carbs, 5g net carbs, 16g fat, 7g protein, and 200 calories.

Why is my peanut butter fudge chewy? ›

If the fudge is very soft and slightly chewy then it is possible that it did not quite cook to soft ball stage and next time the mixture should be cooked to a slightly higher temperature (soft ball is 112-116c/235-240F and a sugar or candy thermometer can help).

Can you remelt peanut butter fudge? ›

The solution? A fudge do-over. Even though it set up properly, I threw it back into a saucepan with about 1 1/2 cups of water and gently heated the mixture to dissolve the fudge into the water. From there, I pretty much re-did the whole cooking process.

Why is my peanut butter fudge so soft? ›

If your fudge fails to harden in the fridge, it means that you probably didn't cook it to the right temperature. Fudge is a candy, and that means it is extremely picky about temperature - fudge must be cooked to precisely 237–239 degrees Fahrenheit so that sugar forms the desired consistency when cooled.

What do I do if my fudge doesn't harden? ›

The main reason is that your Fudge has not reached the optimum temperature. If your mixture only reaches 110 or 112 degrees Celsius it will always be soft. That's why we recommend investing in a sugar thermometer. Another reason your Fudge is not setting is that the ratio of liquid to sugar is too high.

Why is my peanut butter fudge still soft? ›

If there is too much evaporation, when the cooking time is too long, there will not be enough water left in the fudge and it will be too hard. Conversely, if the cooking time is too brief and there is not enough evaporation, too much water will remain and the fudge will be too soft.

Why is my peanut butter fudge too soft? ›

If the fudge is very soft and slightly chewy then it is possible that it did not quite cook to soft ball stage and next time the mixture should be cooked to a slightly higher temperature (soft ball is 112-116c/235-240F and a sugar or candy thermometer can help).

How do you fix peanut butter fudge that is too soft? ›

How do you fix fudge that is too soft? Bring the fudge back to a boil with 1–2 US tbsp (15–30 ml) of cream. If your fudge is soft or runny, it probably didn't come up to a high enough temperature while it was cooking. Put it back into the saucepan and add 1–2 US tbsp (15–30 ml) of 35% fat whipping cream.

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