Preheat the oven to 350 F. In a large bowl, combine cake mix, eggs, and vegetable oil until smooth. Fold in the white chocolate chips.
Place the powdered sugar into a shallow dish. Use a cookie scoop to form the cookie dough into balls. Roll each one into the powdered sugar.
Place the cookies onto a large ungreased baking sheet at least 2-inches apart. Bake for 10-12 minutes.