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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  • Easy Keto Air Fryer Pork Bites
  • Keto Cauliflower Mac and Cheese
  • Keto Cherry Whipped Cottage Cheese

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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 is my 3 ingredient fudge not setting? ›

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 did my peanut butter fudge not get hard? ›

Fudge Didn't 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 much peanut butter can I eat on keto? ›

You can enjoy two tablespoons of this popular spread at a time, even up to five tablespoons, without going over 50 grams of carbs in a day (the upper limit for the standard keto diet) and getting kicked out of ketosis. Also, this amount should leave room for other foods even after eating peanut butter.

How do you make homemade fudge firmer? ›

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. A temperature of 112°C to 114°C (234°F to 237°F) must be maintained. This will ensure the fudge has the ideal concentration of water and sugar.

Can you fix 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).

What not to do when making fudge? ›

7 Common Mistakes to Avoid for Candy Shop-Worthy Fudge and Caramels
  1. Using the Wrong Pan. All candy and confections start by melting sugar. ...
  2. Stirring the Sugar. ...
  3. Not Using a Candy Thermometer. ...
  4. Leaving Out the Parchment Paper Lining. ...
  5. Skipping the Cooking Spray. ...
  6. Scraping the Pot. ...
  7. Using a Cold Knife to Slice.
Dec 16, 2015

How do you make fudge creamy and not grainy? ›

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.

Why shouldn't you stir fudge after it reaches the correct temperature? ›

After cooking, the mixture must cool before being stirred in order to make it crystallize. This cooling period is essential: this is what determines the size of sugar crystals which, remember, should be as tiny as possible. Ideally, the syrup should cool to a temperature of around 43 to 50 °C (110 to 122 °F).

How do you keep peanut butter fudge from being grainy? ›

Once the sugar has dissolved and the mixture has come to a boil, do not stir it. If you do, the sugar can crystallize, giving your fudge a gritty texture. As you beat the fudge, pay attention to color and texture. Once the fudge loses its sheen and thickens, put down your spoon.

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.

Why is my peanut butter fudge still 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).

Which fruit is keto-friendly? ›

Here are 9 nutritious, tasty, and keto-friendly fruits.
  • Avocados. Though avocados are often referred to and used as a vegetable, they're biologically considered a fruit. ...
  • Watermelon. ...
  • Strawberries. ...
  • Lemons. ...
  • Tomatoes. ...
  • Raspberries. ...
  • Peaches. ...
  • Cantaloupe.
Mar 18, 2020

Which brand of peanut butter is best for keto? ›

Brand/ProductNet CarbsAdded Oil
Smart Balance Creamy Peanut Butter5gYes
Jif Creamy Peanut Butter5gYes
Skippy Creamy Peanut Butter4gYes
Justin's Classic Peanut Butter5gYes
2 more rows
Apr 25, 2024

Can I eat peanuts everyday on keto? ›

It's not hard to make peanuts fit in with a low-carb, high-fat diet like keto. A ¼ cup of peanuts has about 3g net carbs, 18g of fat, and 207 calories. One serving of peanuts a day will certainly not put you out of ketosis.

What to do if homemade fudge doesn t set? ›

How can you fix soft fudge? Put it in a microwave safe bowl that is large enough that it won't boil over. Reheat it to the boiling point and cook for about 3 more minutes. Then you can beat some powdered sugar into it if this doesn't make it set.

Why is my fudge not setting properly? ›

If it's overcooked (resulting in grainy fudge) or undercooked (resulting in poor setting) all you really need to do is add a bit of cream, reheat the fudge to the target temperature, and let it set again.

Why is my fudge mixture not thickening? ›

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 to fix fudge that is too hard? ›

Grab the saucepan that you initially used to cook the fudge and toss the fudge back in along with 1 ½ cups of water and a splash of cream. Adding some cream of tartar is a helpful way to keep the sugar crystals at bay as well — it's not essential, but if you have some, definitely pour a little in.

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