Prepare brownie mix according to package directions. Pour brownie batter into a prepared mini muffin tin, filling each cup about 1/2 full. Press one peanut butter cup into the center of each muffin cup.

Bake brownies in a preheated oven according to brownie package directions (If your brownie package does not have a cupcake pan cooking time, you will most likely need to reduce the cooking time down a little).

Once brownies are removed from oven, immediately sprinkle the tops of each brownie with mini M&M’s. Allow brownies to cool completely and then remove from muffin pan.