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Crispy Peanut Butter Marshmallow Cookies

crispy peanut butter marshmallow cookies - featured image

These crispy peanut butter marshmallow cookies combine crunchy edges with gooey marshmallow pockets for a melt-in-your-mouth treat that’s quick and easy to make.

Ingredients

Scale
  • 1/2 cup (115g) unsalted butter, softened
  • 1/2 cup (100g) granulated sugar
  • 1/2 cup (110g) packed light brown sugar
  • 1/2 cup (130g) creamy peanut butter (unsweetened or lightly salted)
  • 1 large egg, room temperature
  • 1 teaspoon vanilla extract
  • 1 1/4 cups (160g) all-purpose flour
  • 1/2 teaspoon baking soda
  • Pinch of salt
  • 3/4 cup (about 50g) mini marshmallows (or chopped regular marshmallows)

Instructions

  1. Preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper or silicone mats.
  2. In a medium bowl, whisk together the flour, baking soda, and salt. Set aside.
  3. In a large bowl, beat the softened butter with granulated sugar and brown sugar until light and fluffy, about 3 to 4 minutes.
  4. Mix in the creamy peanut butter until just combined. Then beat in the egg and vanilla extract until smooth and slightly sticky.
  5. Gradually fold the dry ingredients into the wet ingredients until just combined. Avoid overmixing.
  6. Gently fold in the mini marshmallows, being careful not to crush them.
  7. Using a cookie scoop or tablespoon, drop dough balls onto the prepared baking sheets about 2 inches apart. Lightly press down each ball to flatten slightly.
  8. Bake for 10–12 minutes or until edges turn golden brown. Centers may look soft but will firm up as they cool.
  9. Let cookies rest on the baking sheets for 5 minutes, then transfer to a wire rack to cool completely.

Notes

Chill dough for 30 minutes to prevent excessive spreading and keep cookies thick with crispy edges. If marshmallows brown too fast, tent loosely with foil halfway through baking. For ultra-crispy cookies, reheat in oven for 2 minutes after cooling. Store cookies in an airtight container with a slice of bread to keep them crispy longer.

Nutrition

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