4 med. yams, peeled and sliced 1/2 inch thick
1 1/2 c. sugar
1 stick butter, cut up
1 sm. can crushed pineapple
1 sm. can mandarin oranges
1 tbsp. vanilla

Arrange yams in casserole dish. Sprinkle sugar on top. Spread butter over sugar. Spread pineapple evenly on top. Put oranges over pineapple. Sprinkle on vanilla. Cover with foil and cook in 375 degree oven for about 1 hour or until syrup thickens.