Overhead shot of slices of peanut butter cookie bars.

Low-Carb Peanut Butter Cookie Bars

These Low-Carb Peanut Butter Cookie Bars boast loads of peanut flavor in a bar cookie. They are like brownies with a chewy middle, but taste like peanut butter instead of chocolate. These cookies can be part of a low-carb, keto, Atkins, gluten-free, grain-free, or dairy-free diet. 

Course Dessert, Snack
Cuisine American, low-carb
Keyword keto peanut butter cookies, low carb peanut butter blondies, low carb peanut butter cookes
Prep Time 10 minutes
Cook Time 17 minutes
Total Time 27 minutes
Servings 12 bars
Calories 136 kcal
Author Annissa Slusher



  1. Preheat oven to 350º Fahrenheit. Spray an 8"X8" baking dish with coconut oil.

    Greased pan.
  2. In a medium mixing bowl, whisk together the almond flour, granulated stevia/erythritol blend, baking soda, and sea salt. Set aside.

    Mixing the dry ingredients.
  3. In a small mixing bowl, whisk together the peanut butter and one of the eggs. When mixture is smooth, whisk in the second egg and the vanilla extract.

    Mixing the peanut butter and the eggs
  4. Stir the peanut butter mixture into the dry ingredients.

    Combining the wet and dry ingredients.
  5. Transfer mixture to the prepared baking dish. Spread evenly.

    Spreading dough in the pan.
  6. Bake in the preheated oven for 17-20 minutes. The bars will be more chewy at the lower end of this time range and more cake-like at the upper end of the range.

    Baked bars.
Nutrition Facts
Low-Carb Peanut Butter Cookie Bars
Amount Per Serving (1 bar)
Calories 136 Calories from Fat 99
% Daily Value*
Fat 11g17%
Saturated Fat 2g13%
Polyunsaturated Fat 1g
Monounsaturated Fat 3g
Cholesterol 31mg10%
Sodium 81mg4%
Potassium 74mg2%
Carbohydrates 3g1%
Fiber 2g8%
Sugar 1g1%
Protein 6g12%
Vitamin A 1%0%
Calcium 3%0%
Iron 3%17%
Net Carbs 1g
* Percent Daily Values are based on a 2000 calorie diet.