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Chewy Peanut Butter Marshmallow Cookies

Soft and chewy peanut butter cookies filled with gooey marshmallow pockets and rich, nostalgic flavor.
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Prep Time 10 minutes
Cook Time 12 minutes
Total Time 22 minutes
Servings: 18 cookies
Course: Dessert
Cuisine: American
Calories: 190
Ingredients Equipment Method Notes

Ingredients
  

  • 0.5 cup unsalted butter softened
  • 0.75 cup peanut butter creamy
  • 0.5 cup granulated sugar
  • 0.5 cup brown sugar packed
  • 1 egg large
  • 1 tsp vanilla extract
  • 1.5 cups all-purpose flour
  • 0.5 tsp baking soda
  • 0.25 tsp salt
  • 1.5 cups mini marshmallows

Equipment

  • Mixing bowls
  • Baking sheet
  • Wire rack

Method
 

  1. Preheat oven to 350°F (175°C) and line a baking sheet with parchment paper.
  2. Cream butter, peanut butter, and sugars until smooth.
  3. Mix in egg and vanilla until combined.
  4. Whisk flour, baking soda, and salt, then mix into wet ingredients.
  5. Fold in marshmallows gently.
  6. Scoop dough onto baking sheet, spacing evenly.
  7. Bake 10–12 minutes until edges are lightly golden.
  8. Cool briefly before transferring to a wire rack.

Notes

Do not overbake for maximum chewiness.