How to Make the Perfect Peanut Butter Mug Cookie
American · Easy · 5 min · 1 servings
This giant Peanut Butter Mug Cookie is a warm gooey single-serving treat that cooks in the microwave in just 2 minutes making it the ultimate quick dessert. It is naturally gluten-free and requires only 3 pantry staple ingredients.
Why this recipe works
This Peanut Butter Mug Cookie recipe has been crafted to deliver restaurant-quality results in your home kitchen. At just 5 minutes from start to finish, it fits perfectly into a busy schedule without sacrificing flavor. Each serving comes in at 420 calories with 14g of protein, making it a balanced choice for any meal.
What you will need
This recipe uses 4 simple ingredients that you can find at any grocery store:
- 4 tablespoons creamy peanut butter
- 1 large egg
- 3 tablespoons brown sugar
- 2 tablespoons chocolate chips
Step by step instructions
Step 1: Mix the Batter
Combine peanut butter, egg, and brown sugar in a large microwave-safe mug. Stir vigorously with a fork until completely smooth and well combined. Fold in the chocolate chips.
Step 2: Microwave
Microwave on high for 60 to 90 seconds until the cookie is just set on top but still appears slightly underdone in the center. It will continue cooking from residual heat after removal.
Step 3: Cool and Enjoy
Allow the mug cookie to cool for 1 to 2 minutes before eating as the mug and the cookie will be very hot. Top with a scoop of vanilla ice cream for an extra indulgent treat.
Easy substitutions
Missing an ingredient? Here are some swaps that work perfectly:
- creamy peanut butter → almond butter or sunflower seed butter for a nut-free option
- brown sugar → maple syrup using 2 tablespoons for a refined sugar-free version
Common mistakes to avoid
Watch out for these pitfalls that can affect your results:
- Overcooking the cookie which turns it rubbery and dry rather than soft and gooey in the center
- Using natural peanut butter with separated oil which creates an uneven greasy texture in the finished cookie
Nutrition facts
Per serving: 420 calories, 14g protein, 32g carbs, 28g fat, 2g fiber.
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