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    Home / Recipes / Candy

    Easy Keto Peanut Butter Cups Recipe

    By Lisa MarcAurele · Jul 17, 2023 · 13 Comments

    1.6K shares
    Jump to Recipe
    peanut butter cups pinterest image
    Easy keto peanut butter cups low carb candy recipe
    keto Reese's cups copycat recipe

    These easy keto peanut butter cups are a delicious, guilt-free way to satisfy your sweet tooth! With only 2 net carbs, they make for a perfect tasty treat for anyone on a low-carb keto diet.

    keto peanut butter cups cover image
    Article Index
    • Ingredients Needed For Keto Peanut Butter Cups
    • How To Make Keto Peanut Butter Cups
    • Frequently Asked Questions About Keto Peanut Butter Cups
    • Other Chocolate Peanut Butter Recipes
    • Recipe

    With Halloween and the holidays approaching, I’m sure there will be plenty of candy floating around. That’s why it’s a good idea to keep low-carb treats like these keto peanut butter cups on hand!

    They look a lot like my chocolate peanut butter fat bomb recipe on the outside, but the difference is separating the ingredients. The peanut butter center is prepared separately from the chocolate to make it a true chocolate peanut butter cup.

    So, if you’re like me and always appreciate good low-carb peanut butter recipes but also want a little chocolate in your candy, then you’re going to love this low-carb treat!

    Ingredients Needed For Keto Peanut Butter Cups

    You might already have all of these ingredients in your refrigerator and pantry. They are simple and easy to find.

    Peanut Butter

    Use either creamy or crunchy peanut butter. It all depends on how you want your peanut butter cups to taste. If you like the crunchy bits of peanuts, then use them!

    Make sure the peanut butter is as natural as possible without any added sugar.

    Butter

    This binds all the ingredients together. If you are dairy-free, you can use ghee. Coconut oil might work too, but it will give the peanut butter cups a different taste.

    Sweetener

    I used both powdered erythritol and vanilla stevia drops. If you wanted to, you could just use some vanilla and use more powdered erythritol.

    Tip: Check out this guide on all sorts of low-carb sugar substitutes for you to try!

    Protein Powder

    Even though peanut butter is a natural source of protein, adding more protein powder makes these sweet chocolate cups even better for you!

    Use unflavored whey protein so that it mixes with the rest of the ingredients without adding any funky aftertaste.

    Chocolate

    For the chocolate shell, I suggest using sugar-free chocolate. If you want it to have a richer flavor, use dark chocolate. For a fun twist, use sugar-free white chocolate! I highly recommend buying keto chocolate from Good Chocolate.

    Please note: Check out the recipe card at the bottom for a full list of ingredients used to make this low-carb recipe.

    ingredients for keto peanut butter cups

    Recipe's Quick Tips:

    • I use silicone cupcake liners to achieve that traditional Reese’s shape. By creating the peanut butter centers first, then layering with the melted chocolate, you will really feel like you’re eating a regular Reese’s peanut butter cup!
    • The silicone cupcake molds are also great for making fat bombs. I used them to make white chocolate fat bombs and chocolate peanut butter fat bombs made with chocolate and peanut butter.
    • To melt the chocolate, I prefer to use a chocolate melter to get it at the perfect temperature. However, if you don’t have a chocolate melter, you can use the microwave or a double boiler.

    How To Make Keto Peanut Butter Cups

    All the exact steps are in the printable recipe card at the bottom of this post.

    First, here is a quick overview, along with some helpful photos of the entire process!

    mixing the peanut butter filling ingredients in metal bowl

    1. Mix The Ingredients Together

    First, mix together melted butter, whey protein powder, powdered erythritol, concentrated stevia powder, and peanut butter together in a large mixing bowl.

    2. Pack Batter Into Silicone Molds

    Then, using a cookie scoop, drop about one tablespoon of peanut butter mixture into individual cupcake molds and freeze for at least an hour.

    molding the filling in silicone cupcake liners

    3. Make The Chocolate Shell

    Next, melt the sugar-free chocolate and spread a thin layer at the bottom of a separate set of silicone cupcake liners. Once this layer has hardened, top with the frozen peanut butter centers, then cover each one with another layer of melted chocolate.

    4. Let Them Set

    Finally, place them in the refrigerator to harden quickly before removing each from the silicone molds.

    assembling the peanut butter cups in silicone cupcake molds

    Frequently Asked Questions About Keto Peanut Butter Cups

    Before I get to the entire recipe in the printable recipe card, here are some questions people often ask about these low-carb snacks.

    What peanut butter can you have on keto?

    Peanut butter is naturally very low carb. This makes it a keto-friendly ingredient! But, when it comes to finding the right peanut butter on keto, it is all about checking your nutrition labels.

    Many peanut butter companies will add sugar to sweeten their product. Always make sure you are buying unsweetened peanut butter.

    The best peanut butter for keto is the one where the only ingredients are peanuts. The simpler, the better.

    Is this low-carb candy difficult to make?

    Originally, I thought that these would be difficult and time-consuming to make. It does take patience to make the candy in individual molds, but the process is super easy. And, I like that you get chocolate in every bite.

    The great thing about making your own low-carb candy is that you control what’s in it. Most of the sugar-free candy sold in stores is made with sugar alcohols that can have a laxative effect.

    assembled peanut butter cups on dark brown tray

    Do these taste like Reese’s?

    If you’re craving Reese’s peanut butter cups, this recipe is sure to satisfy. The peanut butter center is very similar to what you get with the store-bought candy, and you still get that chocolate and peanut butter flavor combination.

    I will make these keto Reese’s cups around Halloween so I am not tempted by regular candy!

    I actually had to give some of these away before I ate the whole batch! If you make this yummy treat, you will definitely need some willpower. While they are only two net carbs per serving, you still don’t want to eat too many at once.

    Can keto peanut butter cups be used as fat bombs?

    These keto chocolate peanut butter cups can definitely be used as fat bombs. With 2 net carbs, 2 grams of protein, and 10 grams of fat for a 100 calorie peanut butter cup, they are a nice way to get some extra fats in.

    Fat bombs are a great way to add healthy fats to your diet. Plus, they can help you curb your hunger. Many fat bombs are made in the form of desserts, so they are also good for satisfying your sweet tooth.

    With the right macros and delicious taste, you can easily make a batch of these sugar-free peanut butter cups to have on hand whenever you need a quick fat bomb.

    keto peanut butter cups on light purple plate

    Other Chocolate Peanut Butter Recipes

    Looking for more keto dessert recipes that combine peanut butter and chocolate? Check out a few of these other favorites:

    • Chocolate Peanut Butter Fudge is a delicious treat that will keep you from being tempted by high carb treats.
    • Chocolate Peanut Butter Fat Bombs have a similar shape and flavor to this recipe, but are easy to throw together in a matter of minutes.
    • Easy No Bake Chocolate Peanut Butter Pie is one of my personal favorites, but be warned that everyone is going to want you to share.
    • Chocolate Peanut Butter Cake is a decadent, rich chocolate cake topped with a sugar free peanut butter frosting.
    • Peanut Butter Chocolate Milkshake is a delicious combination of chocolate and peanut butter that is creamy, low carb, and dairy free.

    I also put together a collection of low-carb peanut butter recipes for Parade!

    Follow us on FACEBOOK, PINTEREST, and INSTAGRAM for even more tasty keto-friendly recipes!

    Recipe

    keto peanut butter cups featured image

    Keto Peanut Butter Cups

    5 from 3 votes
    Delicious keto friendly chocolate peanut butter candy with only 2 grams net carbs each. With carbs so low, there's no reason you can't enjoy this low carb keto candy.
    Prep Time:15 minutes mins
    Cook Time:10 minutes mins
    Total Time:25 minutes mins
    Course: Snack
    Cuisine: American
    Print Pin Review Recipe Save Recipe View Collections
    Servings: 20 cups
    Calories: 103

    Video

    Ingredients

    • ⅓ cup butter melted
    • ½ cup whey protein isolate unflavored
    • ⅓ cup powdered erythritol
    • ½ teaspoon vanilla stevia drops
    • ⅓ cup natural peanut butter with no sugar added
    • 7 ounces low carb chocolate bars
    US Customary - Metric

    Instructions

    • In medium bowl, mix the butter, whey protein powder, erythritol, stevia and peanut butter together.
    • Using cookie scoop, drop about a tablespoon of peanut butter mixture into silicone cupcake molds. Press mixture down into bottom of each mold. Freeze for at least an hour.
    • In a chocolate melter, melt the dark chocolate and keep melted on warm setting. Note: this could also be done in microwave or double boiler, but the melter is best to get the right temperature.
    • Remove frozen peanut butter filling from each silicone mold and set aside.
    • Brush melted chocolate to cover bottom and a little bit along the sides of each silicone cupcake mold. While chocolate is still melted, press the frozen peanut butter filling on top of the chocolate in each mold. Top off with a layer of melted chocolate.
    • Chill cups in the refrigerator to set the chocolate. Once set, the candy can be removed from the molds. The cups are fine to have out at room temperature or can be kept in the refrigerator for longer storage.

    Notes

    A brush or small spoon is useful for spreading out the chocolate.
    To ensure the sides of the peanut butter cup have chocolate, it helps to squeeze the silicone mold after topping with melted chocolate. This helps the chocolate drip between the peanut butter disk and the silicone mold.
    Any low carb chocolate bars, either homemade or store bought, can be used in the recipe. Keto friendly chocolate chips work too but often have added fiber to hold the chip shape.

    Low Carb Sweeteners | Keto Sweetener Conversion Chart

    Nutrition

    Serving: 1cup | Calories: 103 | Carbohydrates: 7g | Protein: 2g | Fat: 10g | Saturated Fat: 2g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Cholesterol: 8mg | Sodium: 51mg | Fiber: 5g | Vitamin A: 100IU

    Additional Info

    Net Carbs: 2 g | % Carbs: 7.5 % | % Protein: 7.5 % | % Fat: 84.9 % | SmartPoints: 3
    Values
    Array
    (
        [serving_size] => 1
        [calories] => 103
        [carbohydrates] => 7
        [protein] => 2
        [fat] => 10
        [saturated_fat] => 2
        [polyunsaturated_fat] => 1
        [monounsaturated_fat] => 1
        [cholesterol] => 8
        [sodium] => 51
        [fiber] => 5
        [vitamin_a] => 100
        [serving_unit] => cup
    )
    

    Notes on Nutritional Information

    Nutritional information for the recipe is provided as a courtesy and is approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site. Erythritol carbs are not included in carb counts as it has been shown not to impact blood sugar. Net carbs are the total carbs minus fiber.

    Copyright

    © LowCarbYum.com - Unauthorized use of this material without written permission is strictly prohibited unless for personal offline purposes. Single photos may be used, provided that full credit is given to LowCarbYum.com along with a link back to the original content.

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    Reader Interactions

    Comments

    1. Malorie Edie

      October 29, 2019 at 1:53 pm

      What other kind of powdered erythritol can ya use? I dont have the so nourished 100% erythritol one.

      Reply
      • Lisa MarcAurele

        October 29, 2019 at 10:15 pm

        You just need a powdered erythritol. If you can only find granular, a small blender like a NutriBullet can grind it into a powder.

        Reply
        • Carmen

          October 08, 2021 at 4:04 pm

          I love your recipes. I'm in keto for long time and I need different recipes.

    2. Malorie Edie

      October 28, 2019 at 1:43 pm

      Can ya use lily's choco chips? Also can ya use almond butter instead of peanut butter?

      Reply
      • Lisa MarcAurele

        October 28, 2019 at 8:46 pm

        I've used Lakanto chips in the recipe so Lily's should work too. And almond butter also works, but has a different taste and texture.

        Reply
    3. Jenn

      July 22, 2019 at 1:33 pm

      5 stars
      So easy and crazy delicious too! Thank You!

      Reply
    4. alyssa

      July 22, 2019 at 1:06 pm

      5 stars
      Perfection! Was craving something sweet and these were yummy and easy.

      Reply
    5. ulla

      March 14, 2019 at 11:18 am

      Hi
      Just started with keto and going for 25 gram carbs a day, those looks amazing, but they are 7gr carbs each as it say in the nutrition facts or do I read wrong?
      Will defiantly try them

      Reply
      • Lisa MarcAurele

        March 15, 2019 at 10:18 am

        If you go by total carbs, they are 7 grams each. But if you do net, you can subtract the 5 grams of fiber.

        Reply
    6. Polly

      October 17, 2018 at 6:03 am

      I only have a pure paleo protein formula in vanilla, would that be an adequate substitute?

      Reply
      • Lisa

        October 17, 2018 at 6:23 am

        You can use it but you'll want to cut back on the sweetener since it's sweetened.

        Reply
    7. Toni Smith

      February 16, 2018 at 6:12 pm

      These look awesome, I’m on day 3 and dying for desert. I have no keto chocolate. Will it be cheating to just buy some Atkins peanut butter cups?

      Reply
      • Lisa

        February 16, 2018 at 7:45 pm

        If you don't mind the pain involved from the maltitol, go for it. Maybe it doesn't bother you? I can't eat anything with certain sugar alcohols or I have gas and severe pain.

        Reply
    5 from 3 votes (1 rating without comment)

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