When it comes to making these super easy brownie cupcakes the trick is all in how you bake them. Start by preparing a box of Betty Crocker™ Fudge Brownie Mix according to the instructions. Then, instead of baking them in a single pan, divide the batter into a muffin tin to create 18 perfectly portioned cupcake-style brownies. All that’s left to do is to frost and decorate them anyway you like. Serve them after dinner, at birthdays, parties and potlucks. They’re the perfect — and cutest — way…