3 Ingredient Peanut Butter Cookies (2024)

3 Ingredient Peanut Butter Cookies are as easy to make as they are delicious to eat! It’s amazing how combining just three simple ingredients can result in such a flavorful peanut butter cookie! For a more classic recipe, try my Peanut Butter Cookies Recipe.

3 Ingredient Peanut Butter Cookies

With the right combination of fat and sugar, all you need are three ingredients to make a decent cookie. These 3 Ingredient Peanut Butter Cookies will fool everyone into thinking you put a lot of time and effort into the batch. But, little will they know that it takes just a few minutes to mix the ingredients and bake these cookies. This is a great recipe for kids to make, too!

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3 Ingredient Peanut Butter Cookies Recipe

The title of the name pretty much says it all–three ingredients is all you need to make peanut butter cookies! Plus, it’s a 1:1:1 ratio (1 cup peanut butter, 1 cup sugar, and 1 large egg) making it easy to remember!

• Peanut butter–I used creamy, but you could also use crunchy. Just stay away from the natural peanut butter.
• Granulated sugar–You could substitute brown sugar for a more butterscotch flavor to the cookie.
• Egg–room temperature

The science behind the ingredients makes this recipe work. The peanut butter is the fat that is so important when baking cookies. It gives the cookies the color, flavor, and crispness that most of us want in our cookies.

The sugar is important for tenderizing the cookie as well as sweetening the cookie. Sugar crystals also make room for the leavening agent to react and allow the dough to inflate. Speaking of a leavening agent, that brings us to the egg. The egg yolk has some fat in it to give the cookie a light texture and the egg white acts as the leavening agent to give the cookie a bit of volume.

How to Make 3 Ingredient Peanut Butter Cookies in an Air Fryer

Preheat Air Fryer to 350°F. Mix ingredients and then spray the tray (or basket) of the air fryer.

Make Mix all of the ingredients together with a hand mixer. Using a 3 tablespoon scoop, portion cookies, and place them onto the air fryer tray. Leave about 2 inches between each cookie. (Mine fits 5 so it was 2 batches total.) Use a fork and press down in a criss-cross pattern on each cookie.

Bake for about 5 minutes, or until cookies reach your desired doneness.

How to Store Peanut Butter Cookies

3 Ingredient Peanut Butter Cookies are best served warm, but you can keep them somewhat fresh by storing them in a plastic zip sealed bag at room temperature for up to six days. You can always add up to a half piece of bread in the bag with the cookies to keep them from getting too hard.

To freeze the cookies, let them cool completely before storing them in an airtight, freezer-safe container for up to three months.