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Costco Marshmallow Crispy Cookies


  • Author: Mira
  • Total Time: 45 minutes
  • Yield: 24 cookies

Description

These Costco Marshmallow Crispy Cookies are soft, chewy, and packed with gooey marshmallows and crispy rice cereal. They’re perfect when you’re craving a nostalgic treat that blends textures—crunchy, soft, and just the right amount of sweet. Whether you’re looking for a quick dessert, a snack for kids, or fun holiday cookie ideas, this easy recipe checks all the boxes for those irresistible food ideas.


Ingredients

1 cup unsalted butter, softened

0.75 cup brown sugar

0.25 cup granulated sugar

1 large egg

1 teaspoon vanilla extract

1.5 cups all-purpose flour

0.5 teaspoon baking soda

0.25 teaspoon salt

1.5 cups mini marshmallows

1.5 cups Rice Krispies cereal


Instructions

1. Cream the softened butter, brown sugar, and granulated sugar until light and fluffy.

2. Add in the egg and vanilla extract and mix until fully incorporated.

3. In a separate bowl, whisk together flour, baking soda, and salt, then gradually mix into wet ingredients.

4. Fold in mini marshmallows and Rice Krispies gently with a spatula to avoid crushing the cereal.

5. Scoop tablespoon-sized dough portions onto a baking sheet and chill for 30 minutes.

6. Bake at 350°F (175°C) for 10-12 minutes until edges are golden and centers are soft.

7. Let cookies cool on the baking sheet for 5 minutes before transferring to a wire rack.

Notes

Don’t skip chilling the dough—it helps prevent spreading and keeps marshmallows from melting too much.

Use parchment paper to avoid sticky messes from melted marshmallow.

Tuck a few marshmallows inside each dough ball to get gooey centers instead of melty puddles.

  • Prep Time: 15 minutes
  • Cook Time: 12 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 cookie
  • Calories: 185
  • Sugar: 14g
  • Sodium: 95mg
  • Fat: 9g
  • Saturated Fat: 5g
  • Unsaturated Fat: 3.5g
  • Trans Fat: 0g
  • Carbohydrates: 25g
  • Fiber: 0.5g
  • Protein: 1.5g
  • Cholesterol: 25mg

Keywords: easy dessert, cookie recipe, marshmallow cookies, crispy cookie, kid friendly snack