Step 1: Bake the cupcakes
Prepare box cupcake mix according to package instructions. Let cool.
Step 2: Create the “piñata” center
Once cooled, use a small knife or cupcake corer to cut a small hole in the center of each cupcake (about ¾ of the way down).
Fill each hole with mini candies or sprinkles.
Replace the top part of the cupcake (trim the bottom so it fits flat).
Step 3: Frost and decorate
Prepare frosting. Pipe frosting onto cupcakes. Decorate with additional sprinkles.