Recipe for One Flourless Peanut Butter Cookie

Published July 4, 2014. Updated March 6, 2020

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Two weeks ago I posted a recipe for a single chocolate chip cookie. It has quickly become one of my favorite recipes (like I’ve probably made it 5 times since then) because it’s incredibly easy yet it yields amazing results. It begins with a few basic ingredients (I always keep on hand), a bowl and a spoon, and it ends as a soft, chewy chocolate chip cookie. Since I’ve been so obsessed I decided to create a peanut butter version.  This one is flourless, yet it’s so soft and deliciously chewy. Better yet, it’s only THREE ingredients! Can’t beat that, right? I don’t know if it gets any easier than this.

Recipe for One Peanut Butter Cookie! Flourless and only 3 ingredients! | Cooking Classy

If you are wondering why the powdered sugar, the first attempt at this recipe I used granulated sugar and there was a faint grittiness, so I thought either try out superfine sugar or powdered sugar. But since the vast majority of us don’t keep superfine sugar on hand (I usually just make mine in the food processor) I decided to go with the powdered sugar and it worked wonderfully. I think the cornstarch in the powdered sugar even offers a little chew to this perfectly peanut buttery cookie.

After making four of these already I know this is going to be my new obsession. You may just find it to be yours too!

Enjoy!

Recipe for One Peanut Butter Cookie! Flourless and only 3 ingredients! | Cooking Classy

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5 from 5 votes

Recipe for One Flourless Peanut Butter Cookie

The perfect recipe for when you get a cookie craving but don't want to make a full batch! This is so easy, it only requires a 3 basic ingredients and it's incredibly delicious!
Servings: 2
Prep5 minutes
Cook12 minutes
Ready in: 17 minutes

Ingredients

Instructions

  • Preheat oven to 350 degrees. In a bowl, using a fork, stir together all ingredients until well blended and batter begins to dry slightly (the more you stir the drier it will become, you just want it dry enough to be able to hold a shape and form a ball).
  • Shape into a ball then transfer to a Silpat or parchment paper lined baking sheet.
  • Using the palm of your hand, flatten ball slightly, then using the fork gently press downward to make criss cross patterns over entire cookie (it should be about 3 1/2-inches across).
  • Bake in preheated oven 12 - 15 minutes. Cool slightly then enjoy.

Notes

*To get this, crack egg into a small bowl, whisk to blend then measure out 1 Tbsp. Reserve remainder in refrigerator for another use.
Nutrition Facts
Recipe for One Flourless Peanut Butter Cookie
Amount Per Serving
Calories 259 Calories from Fat 153
% Daily Value*
Fat 17g26%
Saturated Fat 4g25%
Cholesterol 28mg9%
Sodium 159mg7%
Potassium 209mg6%
Carbohydrates 21g7%
Fiber 2g8%
Sugar 18g20%
Protein 9g18%
Vitamin A 40IU1%
Calcium 14mg1%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.
Nutrition values are estimates only. See full disclaimer here.
Recipe for One Peanut Butter Cookie! Flourless and only 3 ingredients! | Cooking ClassyRecipe for One Peanut Butter Cookie! Flourless and only 3 ingredients! | Cooking ClassyRecipe for One Peanut Butter Cookie! Flourless and only 3 ingredients! | Cooking ClassyRecipe for One Peanut Butter Cookie! Flourless and only 3 ingredients! | Cooking ClassyRecipe for One Peanut Butter Cookie! Flourless and only 3 ingredients! | Cooking ClassyRecipe for One Peanut Butter Cookie! Flourless and only 3 ingredients! | Cooking ClassyRecipe for One Peanut Butter Cookie! Flourless and only 3 ingredients! | Cooking Classy

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83 Comments

  • Teresa Francis

    Oh my goodness. Incredible. I quadrupled the recipe and made small cookies to take to the teachers lounge tomorrow! Added vanilla. Thank you!

  • A.c

    Solo I just made like two batches of peanut butter cookies. You see cooking with kids ayyyy. I made the first batch with my little brother and they messes up I ended up adding oatmeal to help them come together. They taste awesome! And I made a second batch which looks perfect. Anyway thank you for posting I’ve been wanting to make this recipe for—ever.

  • JJ

    Hi, Jaclyn. I’m very sorry it took so long for me to get back to you; my life has been really crazy! Anyhow, I wanted to tell you, those chocolate cookies are great! If I may quote a pun of Mother’s, they’re “more-ish”. ???? I told you I wasn’t a fan of chocolate cookies; but I got burnt out on peanut-butter cookies, so I chose the chocolate to find out what would happen. You know what? I’m convinced. Flourless chocolate cookies are it. Thank you!
    Also, please note the change of address.

  • JJ Keist

    Yes, my question as well.. My oldest brother is a diabetic also. Could he eat these? I think he likes peanut-butter cookies. I don’t want him to have to deprive himself just because of his diabetes. I’ve heard that wheat causes spikes in blood sugar, and if that’s true, these cookies might be safe for him.

    • Jennifer

      Man this is coming way late, lol, but he can have these as long as he uses a sweetener like Splenda and not sugar!

  • Worried

    I’ve got a nephew who’s diabetic; can he eat these safely, seeing that they contain no flour?

    • Becki

      Your nephew can eat just like anyone else-healthy most the time with a few indulgences here and there and make sure he adjusts his insulin for what he is eating. The flour content doesn’t matter much.

  • Ryan

    I’m not sure why the “grittiness” bothers y’all so much. I like the texture it gives the cookie.