Step 1

Line a large baking sheet or a 9x13 pan with parchment and set aside. (Feel free to use foil, if you’d prefer, just don’t forget to grease the foil very well with butter to prevent sticking!)

Step 2

Melt the butter in a large pot, over medium heat. Add 8 cups marshmallows and stir until they melt. (See note below for microwave directions.)

Step 3

Remove from the heat, add cereal and stir until combined. Stir in the additional marshmallows and coconut. Scoop the sticky cereal mixture onto the lined pan.

Step 4

Use a lightly buttered spatula or spoon to gently press the mixture across the pan, being careful not to press too firmly.

Step 5

Let cool for a few minutes before slicing. Store in an airtight container for several days.