1/2 c. butter
1 pkg. yellow or devils food cake mix
3 c. miniature marshmallows
1 (6 oz.) pkg. semi sweet chocolate pieces
3 c. Cheerio cereal
1 (14 oz.) can sweetened condensed milk

Heat oven to 350 degrees. In oven melt butter in 15 1/2" x 10" x 1" pan. Rotate pan until butter covers bottom. Sprinkle dry cake mix over butter, sprinkle with marshmallows, chocolate chips and cereal; pour milk evenly over top. Bake about 25 minutes.