cake batter blondies. ingredients: 1 box yellow cake mix 1/4 cup canola oil 1 egg 1/3 – 1/2 cup milk 1/4 cup rainbow sprinkles 1/2 cup white chocolate chips (optional) directions: Combine the first four ingredients in a large bowl. Add the milk slowly – you want the batter to remain as dense as possible. Then mix in the rainbow sprinkles and white chocolate chips. Bake for 30 minutes at 350 degrees.