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Copycat Costco Marshmallow Crispy Cookies

Copycat Costco Marshmallow Crispy Cookies

Copycat Costco Marshmallow Crispy Cookies combine the nostalgic crunch of crispy rice cereal with a soft, gooey marshmallow texture for a chewy and crispy treat. This easy-to-make recipe uses simple pantry ingredients and can be customized with add-ins like chocolate chips, nuts, or dried fruits. Perfect for family gatherings, school snacks, or anytime you crave a sweet, chewy delight.

  • Total Time: 20 minutes
  • Yield: 24 cookies (1.5 x 1.5 inch squares) 1x

Ingredients

Scale

Main Ingredients

  • 1/4 cup (4 tablespoons) Butter
  • 4 cups Marshmallows (fresh)
  • 6 cups Crispy Rice Cereal
  • 1/4 cup Sugar
  • 1 teaspoon Vanilla Extract
  • 1/4 teaspoon Salt

Instructions

  1. Step 1: Melt the Butter and Marshmallows – Begin by melting the butter in a large saucepan over low heat. Once melted, add the marshmallows and stir continuously until they are completely melted and smooth. This mixture will act as the glue that holds your cookies together.
  2. Step 2: Mix in Vanilla, Sugar, and Salt – Remove the pan from heat, then stir in the vanilla extract, sugar, and salt. These ingredients add layers of flavor and balance the sweetness and buttery notes.
  3. Step 3: Incorporate the Crispy Rice Cereal – Gently fold in the crispy rice cereal with a spatula until every piece is evenly coated with the marshmallow mixture, preserving the crispiness while ensuring it is well-bound.
  4. Step 4: Shape and Cool – Transfer the mixture into a greased or parchment-lined baking dish, pressing it down evenly but not too firmly to maintain fluffiness. Allow it to cool at room temperature until set and firm enough to cut.
  5. Step 5: Cut and Serve – Once cooled, cut the cookies into squares or rectangles of your preferred size. Serve fresh to enjoy the best chewy-crispy texture.

Notes

  • Use fresh marshmallows for the smoothest melt and best chewy texture.
  • Melt butter and marshmallows on low heat to prevent burning or graininess.
  • Do not press the mixture too hard to maintain the light crispiness.
  • Grease or line your pan with parchment paper to prevent sticking.
  • Store cookies in an airtight container to retain freshness and chewiness.
  • Author: Lina
  • Prep Time: 10 minutes
  • Cook Time: 10 minutes
  • Category: Appetizers
  • Method: Baking
  • Cuisine: American
  • Diet: Gluten Free

Nutrition

  • Serving Size: 1 cookie (approximate)
  • Calories: 150
  • Sugar: 12g
  • Sodium: 70mg
  • Fat: 7g
  • Saturated Fat: 4g
  • Unsaturated Fat: 2g
  • Trans Fat: 0g
  • Carbohydrates: 20g
  • Fiber: 0.5g
  • Protein: 1g
  • Cholesterol: 15mg

Keywords: copycat, costco, marshmallow crispy cookies, chewy cookies, crispy rice cereal, sweet treats, easy recipe, gluten free dessert, family snack