Start by lining a sheet pan with parchment paper.

In a large microwave-safe mixing bowl, place the butter and mini marshmallows. Microwave on high for 1 minute, stir, and continue to microwave until all the marshmallows are melted, about 1-2 minutes.

Stir in a few drops of green food coloring until you reach a lovely leaf green hue.

Gently fold the cornflakes into the melted marshmallow mixture until they are evenly coated.

Wet your hands slightly to prevent sticking, then form the mixture into 3-inch disks with holes in the middle to create wreath shapes.

Stick three red M&M's together to mimic holly berries and place them in the center of each wreath.

Place your decorated wreaths in the refrigerator for about 30 minutes to set.