DIRECTIONS:

Preheat oven to 350 degrees F. Grease and flour 13 x 9 inch pan. Prepare cake mix as directed on package. Add chips and marshmallows to batter. Pour into prepared pan. Drizzle melted butter over batter. Sprinkle with sugar and top with walnuts. Bake 45 to 55 minutes or until toothpick inserted in center comes out clean. Serve warm or cool completely in pan.