01 -
Heat the oven to 350°F. Line 2 baking sheets with parchment paper.
02 -
In a large bowl, beat the softened cream cheese and butter until smooth and creamy, about 1-2 minutes. Beat in the egg and vanilla until combined.
03 -
Add the cake mix and beat on low speed until a thick, sticky dough forms. Scrape the bowl to make sure no dry mix remains.
04 -
Fold in 1/3 cup sprinkles with a spatula just until evenly scattered through the dough.
05 -
Cover and refrigerate for 30-45 minutes, until the dough is easier to scoop and roll.
06 -
Scoop 1 1/2 tablespoon portions and roll into balls. Coat each ball generously in powdered sugar and place 2 inches apart on the baking sheets. Add a few extra sprinkles on top if desired.
07 -
Bake for 10-12 minutes, until the edges are set and the centers still look soft. Cool on the baking sheet for 5 minutes, then transfer to a rack.