1 box Duncan Hines butter cake mix
1 (8 oz.) pkg. cream cheese
1 egg
1 stick butter
1/4 tsp. vanilla
powdered sugar

Mix all ingredients, except powdered sugar, in a bowl. Chill dough 1 hour. Roll balls in powdered sugar and bake on an ungreased cookie sheet at 350°F for 10 to 12 minutes.