1/2 c. butter
1 pkg. yellow or devils food cake mix
3 c. miniature marshmallows
1 pkg. (6 oz.) chocolate chips or butterscotch chips
3 c. Cheerios
1 can (14 oz.) sweetened condensed milk

Heat oven to 350 degrees. In oven melt butter in 15 1/2 x 10 1/2 x 1 inch pan. Rotate pan until butter covers bottom. Sprinkle cake mix over butter; sprinkle with marshmallows, chocolate pieces and cereal. Pour milk evenly over top. Bake about 25 minutes or until golden brown. While warm, run knife around edges to loosen sides. Cool. Cut into bars.