Spread the green icing onto half of the Rice Krispie Treats.
Then sprinkle the black sugar sprinkles on the top portion of the Rice Krispies Treats with the free frosting. Then place on the eyes and use the black writing icing to make the mouth of the monster Rice Krispies treats.
On the remaining Rice Krispie treats, place the eyes on the center of the treats using the white pre-made decorating icing. Then drizzle the remaining icing on top of the Rice Krispie treats to look like the wrap on a mummy.
Serve and enjoy!
Notes
Store the leftovers in an air tight container for up to 1 week. Please add a recipe card on this post right below where I put: "Print this Halloween Rice Krispie Treats Recipe:"