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

  • JJ

    My mouth is watering already, and I haven’t even tasted these yet! Peanut-butter cookies make me insane, I’m so addicted to them; and you just made them easy enough for a child of eight to make. Thanks!

  • sally @ sallys baking addiction

    I have GOT to try this Jaclyn! I love you even more for this recipe. :)

  • Archontoula Alexandropoulou

    The degrees you mention (350) are Celsius? I live in Greece and my oven goes as far as 300 degrees.

    • Jaclyn

      Jaclyn Bell

      350 Fahrenheit. All the recipes I have posted are in Fahrenheit for future note :).

  • Avra-Sha Faohla

    I’ve made 3-ingredient PB cookies before, but I was never overly impressed with them. Swapping the granulated sugar for powdered is brilliant! It really does a lot for this cookie. I liked it!

  • Alyssa {Cake, Crust, and Sugar Dust}

    So perfect that you used powdered sugar! This looks like a single serve recipe thats worth making!

  • Sandy

    Was super excited to see this recipe. I found my first try to be missing something. So I made it again and added a pinch of salt and just a few drops of vanilla and it was perfect. I have just taken two more out of the oven and two of the one big chocolate chip cookies out of the oven. They will be part of my son’s birthday gift today. Still crossing my fingers to see an oatmeal sometime soon. Thank you for having the most trusted blog I cook from. :)

    • Jaclyn

      Jaclyn Bell

      Yes I need to post an oatmeal one soon too :)! For simplicity purposes and since they add salt to the peanut butter I just left out the salt and vanilla but thanks for letting me know you liked it better that way, I may try adding a touch myself next time. I’m so happy to hear you trust my blog :)!!

    • Jaclyn

      Jaclyn Bell

      I’m hoping next week I can make an oatmeal cookie. Do you like oatmeal chocolate chip or oatmeal raisin?

  • Amry

    Thank you Jaclyn for is simple and tasty recipe! I didn’t have regular peanut butter and used 1/2 natural peanut butter and 1/2 homemade almond butter. The batter was a little “wet”, but the cookie came out perfectly crisp on the edges yet soft and chewy in the middle.

    • Jaclyn

      Jaclyn Bell

      Ooh yun I like the addition of almond butter, I’m going to have to try that! I’m glad you liked it Amry!