Pineapple Au Gratin
["2 cans pineapple chunks, drained", "4 heaping Tbsp. flour", "1 c. sugar", "8 oz. grated cheese", "1 1/2 sticks crushed Ritz crackers", "1 stick melted butter"]
["Layer ingredients in order given.", "Bake at 350\u00b0 for 40 minutes."]
["pineapple", "flour", "sugar", "grated cheese", "crackers", "butter"]