These three-ingredient keto peanut butter cookies mix in one bowl and bake with soft centers, golden edges, and classic fork marks.
Keto Peanut Butter Cookies With 3 Ingredients
Natural peanut butter, one egg, and a sugar-free sweetener create a flourless dough. A short chill makes portioning cleaner and limits spreading.
- Prep: 8 minutes
- Chill: 15 minutes
- Bake: 9 to 11 minutes
- Temperature: 350 degrees F
- Yield: 12 cookies
Three Ingredients
- 1 cup smooth natural unsweetened peanut butter, 9 oz
- 1 large egg, room temperature
- 1/3 cup granulated monk-fruit erythritol sweetener
How to Make Keto Peanut Butter Cookies
- Heat the oven to 350 degrees F.
- Line a metal sheet pan with parchment paper.
- Stir peanut butter, egg, and sweetener for 60 seconds until smooth.
Mix until the egg is completely incorporated and the dough is uniform. - Chill the dough for 15 minutes.
- Divide into 12 equal balls, about 1 tablespoon each.
- Place portions 2 inches apart.
- Flatten each ball with a fork in a crosshatch pattern.
Equal portions and thickness help every cookie bake evenly. - Bake for 9 to 11 minutes until the edges are set.
- Cool on the pan for 10 minutes before moving.
Portioning and Baking Tips
- Chill sticky dough for 5 additional minutes.
- Wipe the fork between cookies if dough clings.
- Do not overbake; the centers firm while cooling.
- Allow complete cooling before stacking.
Storage
For safe handling and storage, follow the FDA food-allergy guidance, including prompt refrigeration and clean utensils.
- Store cooled cookies in a sealed container for up to 4 days.
- Refrigerate for up to 7 days.
- Freeze baked cookies for up to 2 months.
- Thaw at room temperature for 30 minutes.
Try these with almond flour cookies, keto cheese crisps, or Greek yogurt breakfast bowl.
Food-Safety and Allergen Checks
Peanuts and eggs are major allergens. Read every sweetener and peanut-butter label, prevent cross-contact with clean equipment, and never serve these cookies to someone with either allergy.
Reliable Three-Ingredient Cookie Texture
Natural peanut butter varies in oil content. Stir the jar thoroughly before measuring so every portion receives the same balance of peanut solids and oil.
The dough should be soft but hold a ball after chilling. If it looks oily, chill five minutes longer rather than adding an unlisted fourth ingredient.
Let the cookies cool completely on the pan. Their centers remain fragile while hot and become firm enough to lift as they return to room temperature.
Measure and Cool Consistently
Use a level tablespoon for every portion and keep two inches between cookies. Begin checking at nine minutes because dark pans can brown the bottoms faster.
Move the entire pan to a cooling rack after baking. Transfer individual cookies only after ten minutes, when their edges and centers can support the move.
Keto Peanut Butter Cookies FAQ
Why did my cookies spread?
The peanut butter may be unusually runny or the dough may need a longer chill.
Can I use powdered peanut butter?
No. Powdered peanut butter has different fat and moisture levels and cannot replace natural peanut butter directly.