Grandmama'S Pineapple Cake
["1 cake mix (pineapple or yellow)", "1 (15 oz.) can crushed pineapple", "1/2 c. water", "2 Tbsp. flour", "1 tsp. vanilla flavor", "3/4 c. sugar"]
["Bake cake according to package directions (either layer cake or sheet cake).", "Combine rest of ingredients.", "Bring to a boil; reduce heat and simmer until mixture thickens (usually 10 minutes).", "Pour over cake."]
["cake", "pineapple", "water", "flour", "vanilla flavor", "sugar"]