Preheat oven to 350 degrees, line a 8x8 baking pan with parchment paper and set aside
In a large bowl, add the cake mix, butter, vanilla extract, and eggs and mix until combined
Fold in sprinkles until evenly dispersed!
Pour the batter in the 8x8 pan. Bake for 16 -20 minutes or until a toothpick comes out clean!