01 -
Set your oven to 350°F and line baking trays with parchment paper.
02 -
Combine butter, cream cheese, egg, and vanilla until it's creamy and smooth.
03 -
Stir in cake mix until you get a thick dough. Gently work in the sprinkles.
04 -
Pop the dough in the fridge for 30 minutes to firm it up.
05 -
Form 1 1/2-inch balls and roll each ball in powdered sugar to coat.
06 -
Space balls 2 inches apart. Bake 10-12 minutes until edges are set but centers stay soft.