Line a 13x9 or 9x9 inch pan with aluminum foil and spray liberally with baking spray. Set aside.

Melt butter in a large pot over medium heat. Add mini marshmallows and mix until melted. Be careful not to brown the butter. Pour in Oreo O’s and mix together until combined.

With a spatula, press the treat mixture into your lined pan. Let treats cool in pan, drizzle with 2oz melted candy then top with chopped Oreos. Finish with another drizzle of melted candy. Let candy harden then cut into squares.