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Cookies and Cream Marshmallow Bars featuring chocolate cookies and marshmallows

Cookies and Cream Marshmallow Bars

A delightful no-bake treat combining cookies, marshmallows, and butter for a sweet, crunchy snack that's perfect for any occasion.
Prep Time 15 minutes
Cook Time 10 minutes
Total Time 1 hour 25 minutes
Course Dessert, Snack
Cuisine American
Servings 16 bars
Calories 150 kcal

Ingredients
  

For the Bars

  • 56 pieces cookies and cream biscuits (Oreos)
  • 30 g unsalted butter
  • 200 g mini marshmallows

Instructions
 

Preparation

  • Line a 20cm (8in) square baking tin with nonstick baking paper.
  • Break the cookies and cream biscuits into quarters (by hand or with a knife), then set aside.

Cooking

  • Add the butter and mini marshmallows to a large saucepan. Warm over medium heat, stirring constantly, until fully melted and combined.
  • Remove from heat, add the broken biscuits, and fold until completely coated.

Setting

  • Scoop the mixture into the prepared tin and press down firmly (use a wet glass if it’s very sticky).
  • Chill in the refrigerator for 1–2 hours until set, then cut into 16 bars.

Notes

Store in an airtight container in the refrigerator for up to 4 days. For best results, mix the butter and marshmallows thoroughly over the heat and avoid overcooking.
Keyword Cookies and Cream, Easy Recipe, Marshmallow Bars, No-bake dessert, Sweet Treat