Prepare your pan. Prepare an 8x8-inch baking pan by spraying it with non-stick cooking spray or greasing it with a thin layer of butter.

Melt the butter. In a large saucepan over low- medium heat, add the butter and melt completely.

Add marshmallows. Add the mini marshmallows to the melted butter and stir continuously until melted and well combined with the butter.

Add the cereal. Remove the skillet from the heat and stir in the cereal. Stir and fold the cereal into the marshmallow mixture until all of the cereal is coated. Work quickly, it becomes really sticky quickly.

Transfer to the dish. Pour the mixture into the prepared baking dish and use a piece of parchment paper or a buttered rubber spatula to firmly pack it into an even layer. Use the paper or butter so it doesn’t stick to the spatula.

Cool. Set aside to allow it to cool to room temperature for 1 hour or if you are short on time, you can stick in the fridge for 15 minutes.

Cut. Once it's cooled, cut the treats into 9 squares. Serve and enjoy!