– 1 (10 oz.) bag, mini marshmallows – 4 tablespoons butter – 1/4 cup unsweetened cocoa powder – 1 cup mini chocolate chips, divided – 6 cups cocoa krispies cereal
Spray a 9x9" pan with non-stick cooking spray. Set aside. (You can also use a 9 x13" pan for thinner squares.)
The marshmallows and chocolate chips will be mostly melted. Add in the cocoa powder and stir everything together to combine. The marshmallow mixture will be thick and chocolatey.
Add in the cereal to the marshmallow mixture and stir together using a rubber scraper. Mixture will be thick and sticky.
Working quickly, turn out the mixture into the prepared pan. Lightly spray your hands with non-stick spray and press the mixture firmly into the pan. Top the cereal treats with the remaining 1/4 cup of mini chocolate chips.
Let the treats cool for at least 30 minutes before cutting. Cut into 16 squares.