Step 1

Beat cake mix, butter, and egg together in a large bowl on medium speed until evenly blended.

Step 2

With clean hands, knead mixture until smooth and dough-like.

Step 3

Stir in sprinkles.

Step 4

Spray a small pan with nonstick, turn your batter out onto the pan, and smooth down with your hands to form a single sheet. We used a 9x9 non-stick cake pan.

Step 5

Sprinkle chocolate chips on top, followed by more sprinkles.

Step 6

Bake at 350 for about 22 to 26 minutes (edges should turn golden brown)

Step 7

Remove from oven, cool, and cut.

Step 8

Optional: Spread your favorite icing on top and serve!