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4-Ingredient Keto Peanut Butter Cookies

These keto peanut butter cookies are made with just 4 ingredients: peanut butter, vanilla extract, an egg, and some sugar substitute. Kids love these scrumptious low-carb keto cookies.
Print Recipe
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Course Snack
Cuisine American
Servings 12 people
Calories 1617.9 kcal

Equipment

  • 1 Baking Sheet
  • 1 Parchment Paper
  • 1 Mixing Bowl
  • 1 Fork
  • 1 Wire Rack for cooling

Ingredients
  

Main

  • 1 cup peanut butter
  • ½ cup low-calorie natural sweetener such as Swerve®
  • 1 egg
  • 1 teaspoon sugar-free vanilla extract

Instructions
 

  • Gather all ingredients. Preheat the oven to 350 degrees F (175 degrees C). Line a baking sheet with parchment paper. Dotdash Meredith Food Studios
  • Combine peanut butter, sweetener, egg, and vanilla extract in a bowl; mix well until a dough is formed. Dotdash Meredith Food Studios
  • Roll dough into 12 (1-inch) balls. Place on the prepared baking sheet and press down twice with a fork in a criss-cross pattern. Dotdash Meredith Food Studios
  • Bake in the preheated oven until edges are golden, 12 to 15 minutes. Dotdash Meredith Food Studios
  • Cool for 1 minute before transferring to a wire rack to cool completely. Dotdash Meredith Food Studios

Notes

For optimal texture, ensure your peanut butter is natural, unsweetened, and at room temperature for easier mixing. Overmixing can develop gluten in the egg, making cookies tougher; mix just until combined. Be mindful not to overbake, as keto cookies can dry out quickly. Remove them once the edges are lightly golden. A pinch of flaky sea salt sprinkled on top before baking can beautifully enhance the peanut butter flavor and provide a sophisticated finish. Consider adding sugar-free chocolate chips for another layer of flavor.