Costco Marshmallow Crispy Cookies Copycat Recipe
Chewy brown butter cookies packed with crispy rice cereal and gooey marshmallows, just like the viral Costco Marshmallow Crispy Cookies.
Servings: 13 cookies
Ingredients
- 7 tbsp unsalted butter will brown down to ~85 g
- 2 tbsp shortening room temperature
- 1/3 cup light brown sugar packed
- 1/3 cup granulated sugar
- 1 large egg room temperature
- 1 egg yolk room temperature
- 1 tsp vanilla extract
- 1 & 3/4 cup all-purpose flour
- 1/2 tsp cornstarch
- ½ tsp baking soda
- ¼ tsp baking powder
- ½ tsp kosher salt
- 1 & 1/2 tbsp light corn syrup
- 2/3 cup mini marshmallows more to top the cookie with
- 1 &1/2 cup Rice Krispies cereal
Instructions
- Melt the butter in a light-colored saucepan over medium heat, stirring constantly. Watch for foaming, then golden brown bits at the bottom.7 tbsp unsalted butter
- Pour into a heatproof bowl, scraping in all the browned bits. Cool until slightly thickened (~85 g).
- Beat together browned butter, shortening, brown sugar, and granulated sugar for 2–3 minutes until light and fluffy.2 tbsp shortening, 1/3 cup light brown sugar, 1/3 cup granulated sugar
- Beat in corn syrup, egg, egg yolk, and vanilla until smooth and glossy.1 large egg , 1 tsp vanilla extract, 1 & 1/2 tbsp light corn syrup, 1 egg yolk
- In a separate bowl, whisk together flour, cornstarch, baking soda, baking powder, and salt. Gradually mix into wet ingredients until just combined.1 & 3/4 cup all-purpose flour, 1/2 tsp cornstarch, ½ tsp baking soda, ¼ tsp baking powder, ½ tsp kosher salt
- Gently fold in Rice Krispies, and marshmallows.2/3 cup mini marshmallows, 1 &1/2 cup Rice Krispies cereal
- Cover and chill 1 hour. This helps marshmallows not ooze too much and prevents excess spreading.
- Preheat oven to 350F and line a baking sheet with parchment.
- Scoop 3 Tbsp portions and space well apart. Bake 13-15 minutes until edges are golden but centers still slightly underbaked.
- As soon as the cookies come out of the oven, use a larger cookie cutter than the size of the cookies to swirl them around so that they are a perfect circle and keep any marshmallow that could've oozed out inside
- .Working quickly, take a few mini marshmallows, break them in half, and stick them on the hot cookies to give them that signature Costco cookie look.
- Let cookies rest on the baking sheet for 10 min before transferring to a wire rack. Marshmallows will set as they cool.
Nutrition
Calories: 171Calories | Carbohydrates: 20g | Protein: 3g | Fat: 9g | Saturated Fat: 5g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 1g | Cholesterol: 44mg | Sodium: 167mg | Potassium: 31mg | Fiber: 0.5g | Sugar: 4g | Vitamin A: 442IU | Vitamin C: 2mg | Calcium: 13mg | Iron: 2mg
