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3-Ingredient Peanut Butter Cookies Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.9 from 80 reviews
  • Author: Sophia
  • Prep Time: 7 minutes
  • Cook Time: 8 minutes
  • Total Time: 15 minutes
  • Yield: 12 cookies
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Low Carb

Description

These 3-Ingredient Peanut Butter Cookies are quick, easy, and delicious with minimal ingredients. Perfect for when you want a classic sweet treat without a long ingredient list. Featuring creamy peanut butter, egg, and brown sugar, these cookies come together effortlessly and bake up soft and chewy. There’s also a keto-friendly variation using a sugar substitute to keep carbs low while maintaining great flavor.


Ingredients

Units Scale

Standard Ingredients

  • 1 cup creamy peanut butter
  • 1 large egg
  • 1/2 cup firmly packed brown sugar

Keto / Sugar-Free / Low Carb Ingredients

  • 1 cup creamy peanut butter (choose one that is just peanuts or peanuts and salt, with the lowest net carb count)
  • 1 large egg
  • 1/2 cup brown sugar alternative (e.g., Purecane Sugar Substitute Brown Sweetener)

Instructions

  1. Preheat the oven: Preheat your oven to 350 degrees Fahrenheit to ensure it’s at the correct temperature for baking your cookies evenly.
  2. Mix ingredients: In a large mixing bowl, combine the creamy peanut butter, egg, and brown sugar (or sugar substitute if making keto version). Whisk well until the mixture is smooth and fully combined.
  3. Form dough balls: Use tablespoon-sized scoops to portion the dough. Roll each scoop into a ball using your hands for consistent sizes.
  4. Arrange on baking sheet: Place the dough balls about 2 inches apart on a baking sheet lined with parchment paper to prevent sticking and promote even baking.
  5. Flatten cookies: Press the back of a fork into each dough ball in a crisscross pattern to flatten them slightly and create a traditional peanut butter cookie look.
  6. Bake cookies: Bake in the preheated oven for 8 minutes, just until set. Avoid overbaking to keep the cookies soft and chewy.
  7. Cool: Remove the baking sheet from the oven and allow the cookies to cool on a wire rack. This helps them firm up slightly before storing.
  8. Store: Once completely cooled, store the cookies in an airtight container to maintain freshness.

Notes

  • The nutrition information provided calculates the values for the entire recipe, not just one variation.
  • Standard version nutrition per serving: 155 calories, 11.2g fat, 16mg cholesterol, 106mg sodium, 10.2g carbohydrates, 1.3g dietary fiber, 7.9g sugar, 5.9g protein.
  • Keto version nutrition per serving: 132 calories, 11.2g fat, 16mg cholesterol, 105mg sodium, 4.3g carbohydrates, 1.3g dietary fiber, 2.1g sugar (erythritol counts as zero, making about 0.9g net carbs), 5.9g protein.
  • If dough is too soft, it may be due to brown sugar not packed firmly or oilier peanut butter brands. Possible fixes include using 1 cup granulated sugar instead of ½ cup brown sugar, increasing brown sugar quantity, or chilling peanut butter before mixing.
  • Use a large egg for best dough consistency; medium eggs may cause dough to be too soft.

Nutrition

  • Serving Size: 1 cookie
  • Calories: 155 (standard), 132 (keto)
  • Sugar: 7.9g (standard), 2.1g (keto)
  • Sodium: 106mg (standard), 105mg (keto)
  • Fat: 11.2g (both versions)
  • Saturated Fat: 2g (estimated based on peanut butter fat content)
  • Unsaturated Fat: 9g (estimated, primarily from peanut butter)
  • Trans Fat: 0g
  • Carbohydrates: 10.2g (standard), 4.3g (keto)
  • Fiber: 1.3g (both versions)
  • Protein: 5.9g (both versions)
  • Cholesterol: 16mg (both versions)