Drain pineapple well. Combine sugar, flour, cheese and pineapple. Stir well and then spoon into a greased 1 quart casserole dish. Sprinkle cracker crumbs over pineapple mixture. Sprinkle butter over the cracker crumbs. Bake at 350 for 20-30 minutes.
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Osmundson Pineapple Surprise recipe