Step 1

Line an 8x8 baking dish with foil or parchment paper.

Step 2

Place Oreos in a food processor or blender and pulse until evenly ground.

Step 3

Add marshmallows and butter to a large, microwave safe bowl, and microwave until butter is melted and marshmallows are soft and puffy.

Step 4

Fold in crushed Oreos until well combined. Scoop mixture into baking dish and let set, about 10 minutes.

Step 5

Remove from dish with edges of foil or paper. Cut into squares, serve and enjoy!