Blueberry Crunch
["15 oz. can pineapple, undrained", "16 oz. pkg. frozen blueberries", "3/4 c. white sugar", "1 box yellow cake mix", "1 1/2 sticks margarine, melted"]
["In a greased 9 x 13-inch pan, arrange ingredients in the following order:", "pineapple with juice, blueberries, sugar, dry cake mix and melted margarine.", "Sprinkle a small amount of sugar over the top.", "Bake at 325\u00b0 for 1 hour."]
["pineapple", "frozen blueberries", "white sugar", "yellow cake mix", "margarine"]