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Costco Cookies Recipe

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★★★★★

4.7 from 125 reviews

This Costco Copycat recipe replicates the beloved chewy and slightly crispy cookies packed with brown butter flavor, rice krispie cereal for crunch, and gooey mini marshmallows, topped with a sprinkle of flaked salt for the perfect sweet and salty balance.

Ingredients

Scale

Main Ingredients

  • ½ cup salted butter
  • ¾ cup brown sugar
  • ½ cup granulated sugar
  • 1 large egg (room temperature)
  • 1 teaspoon vanilla extract or vanilla paste
  • ½ teaspoon baking soda
  • ¾ teaspoon salt
  • 1 cup all-purpose flour

Mix-ins and Topping

  • 1½ cups Rice Krispie cereal
  • ⅔ cup mini marshmallows
  • Flaked salt for topping

Instructions

  1. Preheat Oven: Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper to prevent sticking and help with even baking.
  2. Browning the Butter: In a medium saucepan over medium heat, melt ½ cup salted butter and continue cooking past melting until it foams, then turns a golden brown color with a nutty aroma. Stir continuously and watch carefully to avoid burning. Once browned, transfer the butter to a bowl and chill in the fridge or freezer for about 10 minutes to cool.
  3. Mix Butter and Sugars: In a medium mixing bowl, combine the cooled browned butter with ¾ cup brown sugar and ½ cup granulated sugar. Add 1 large room-temperature egg and 1 teaspoon vanilla. Mix on low speed until smooth and well combined, about 30 seconds.
  4. Add Dry Ingredients: Gradually add ¾ teaspoon salt, ½ teaspoon baking soda, and 1 cup all-purpose flour to the wet ingredients. Mix slowly and carefully to avoid overmixing the dough.
  5. Fold in Extras: Gently fold in 1½ cups Rice Krispie cereal, then fold in ⅔ cup mini marshmallows, ensuring they are evenly distributed without crushing them.
  6. Scoop the Dough: Using a 3 tablespoon cookie scoop or equivalent spoon, scoop large balls of dough onto the prepared baking sheet, spacing 4-5 cookies per sheet as they spread thin while baking.
  7. Bake: Bake the cookies for 10 to 13 minutes, looking for a light golden brown around the edges while keeping the center chewy. Avoid overbaking to retain their chewy texture.
  8. Finish and Serve: As soon as the cookies come out of the oven, sprinkle them with flaked salt to enhance the flavors. Let cool slightly before serving.

Notes

  • Using vanilla paste can enhance the depth of vanilla flavor.
  • Watch the butter closely when browning to prevent it from burning.
  • Allow the dough to cool slightly after browning the butter to prevent cooking the egg during mixing.
  • Do not overmix the dough once flour is added to keep cookies tender.
  • Large cookie scoops make for the classic chewy, thin cookie texture.
  • Flaked salt adds a delightful contrast to the sweetness.

Keywords: Costco copycat cookies, brown butter cookies, rice krispie cookies, marshmallow cookies, chewy cookies, sweet and salty cookies

Find it online: https://biteandenjoy.com/costco-cookies-recipe/