Line a sheet pan with parchment paper.

Place your butter and mini marshmallows into a large microwave-safe mixing bowl, microwave on high for 1 minute. Stir the mixture and cook until all the marshmallows are melted about 1-2 minutes.

Stir in a few drops of the green food coloring until you get a leaf green color.

Fold the cornflakes into the marshmallow mixture until well combined.

Wet your hands and form 3-inch disks from the mixture. Place them onto the sheet pan and poke a hole in the middle.

Stick three red M&M's together on the wreath to look like the holly berries.

Place them in the fridge for thirty minutes until the wreaths are set.