Preheat the oven to 350 degrees Fahrenheit and line a 9x13 baking pan with parchment paper and spray with nonstick cooking spray.

Stir together the red velvet cake mix, vegetable oil, and eggs until well combined.

Press the mixture into the prepared baking pan.

Bake for 20 to 25 minutes, until the edges are golden brown.

Allow the cookie bars to cool completely, then remove them from the pan and top with cream cheese icing. Decorate with sprinkles and cut into squares before serving.