1 c. pineapple juice
1/2 c. brown sugar, packed
1/2 c. granulated sugar
2 tbsp. cornstarch
1/2 cube butter
1 c. drained and crushed pineapple
3 lg. or 6 med. yams, cooked

Combine juice, sugar, cornstarch and butter. Bring to boil. Cook 2 additional minutes, stirring constantly. Remove from heat. Add crushed pineapple. Boil unpeeled yams until you can stick fork through them. Slice yams 1/2 inch thick slices. Place in large buttered baking dish. Pour the pineapple sauce over yam slices. Bake 30 minutes at 325 degrees.