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3-Ingredient Keto Peanut Butter Cups

3-Ingredient Keto Peanut Butter Cups

Peanut butter cups are one of those sweet treats that take us to our fondest childhood memories and let’s say it out loud; we enjoy them as grownups too!

The thing about peanut butter cups is that they’re honest one-biters, they promise the coating flavor of peanut butter, and they deliver. All held together by decadent chocolate. Close your eyes and feel the heavy sweet melt in your mouth; what’s not to love!

Did you know the first peanut butter cups were released to the market in 1928 by Reese Candy Company? They were actually called penny cups because that was their retail price. They’re almost 100 years old! And they keep on bringing a smile to our faces.

Here’s the neat thing about making your own peanut butter cups. You only need three ingredients, and you don’t even have to cook anything. You’ll have to melt the chocolate, but I’ll get there in a second. Easy to make, no-bake and inexpensive, that’s what I call a fun project!

Read on and find out everything you need to know about this exciting recipe. You’ll be enjoying your peanut butter cups in no time.


The Ingredient Rundown

You’ll need peanut butter, of course; these are peanut butter cups, right? You might want to use organic, unsweetened, 100% peanut butter and not the cheap stuff. You can also use chunky peanut butter to add some crunch to your sweets.

You’ll also need chocolate, and for that, I recommend visiting your closest bakers’ shop and get confectioner’s chocolate, the good one, sweetened with zero-calorie sweeteners or unsweetened altogether. Just make sure you’re getting chocolate and not flavored vegetable oil. It is not only tastier, but it also melts better.

Our final ingredient is the sweetener, and I find Splenda to be a nice substitute for powdered sugar, but please use your favorite.

How Many Peanut Butter Cups Can You Make?

The recipe below makes 6 cups, but you know you can scale it up as much as you want. With only three ingredients, it’s easy. At the end of the day, it all comes down to how many cupcake liners you have and how much fridge space you have available.

Here’s a tip: Use mini cupcake liners for tiny peanut butter cups; they’re lovely and make for a neat snack you can bring out when having friends coming over.

If you want to be organized, use a cupcake tray. That way, the cupcake liners won’t fall off, and you’ll be able to carry them around.



How To Store Your Peanut butter cups?

You can store your peanut butter cups in the fridge or the freezer indefinitely without a problem. You might want to store them in an air-tight container or Ziploc bag, though; that way, they won’t get contaminated with the rest of the food.

Once the peanut butter cups are outside the fridge, you have to move fast. They melt quickly, especially on warm summer days. And since these bad boys are ideal for backyard parties, you want to bring them out at the last minute. The colder they are, the better.

Neat Substitutions and Variations

There’s nothing wrong with trying to get your peanut butter cups precisely like the ones from Reese’s, but that doesn’t mean you can’t have a little fun.

Playing with your ingredients like chocolate allows you to choose between dark chocolate, milk chocolate and even white chocolate; why not?

You can also substitute the peanut butter for something more exciting. Today there are dozen different types of nut butters in the market. How does a white-chocolate, almond-butter cup sound? That’s taking one of the classic sweets to the new century. Be creative and have fun!


When To Serve Peanut Butter Cups

With such a fast and easy recipe, there’s no reason not to make these peanut butter cups as often as possible, but some occasions are more compatible with the nutty chocolates.

I always make these for Halloween, for example, the time where the treats are more popular. I love seeing people finding my treats better than the original.

These are also lovely gifts for parties, and not only kids’ parties, but all types of parties. People just can’t believe you made your own butter cups. Then they all ask for your recipe. Will you share your secret?

What You’ll Need

This recipe needs no fancy equipment. We’re not mixing, whipping, baking or cooking anything.

The only thing you need is a mixing bowl to combine the peanut butter with the powdered sugar, and a rubber spatula works well for this too.

You also need a container for your chocolate, and it can be anything as long as it’s microwave safe. I use an old plastic Tupperware.

You’ll also need cupcake liners; they’ll hold the mixture together, and they also give the cups that fun zig-zag rim. You can use fancy silicone cupcake liners too, just keep in mind you’ll need one for each cup.


3-Ingredient Keto Peanut Butter Cups

Yield: 6 cups
Prep Time: 20 minutes
Freeze Time: 1 hour
Total Time: 1 hour 20 minutes

Keto peanut butter cups, honest one-biters, they promise the coating flavor of peanut butter, and they deliver. All held together by decadent chocolate. Close your eyes and feel the heavy sweet melt in your mouth; what's not to love!


  1. In a medium-sized mixing bowl, sift the powdered sweetener and throw in
    the peanut butter. Combine well until smooth.
  2. Place the chocolate in a microwave-safe container and melt it in the
    microwave at 10-second intervals.
  3. Pour the melted chocolate into the bottom of the cupcake liners covering
    around half an inch of the mold.
  4. Add the peanut butter mixture for an equal-sized layer.
    Top the cupcake liners with more chocolate to create a perfect
    sandwiched buttercup.
  5. Refrigerate for an hour.
  6. Bring out the peanut butter cups when ready to serve and remove the
    cupcake liners.
  7. Enjoy Your Peanut Butter Cups With Your Loved Ones
Nutrition Information:
Yield: 6 Serving Size: 1
Amount Per Serving: Calories: 279Total Fat: 19gCarbohydrates: 5gProtein: 7g

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