Pineapple Frosting - cooking recipe

Ingredients

1 egg yolk
1 1/2 tsp. margarine
2 Tbsp. flour
16 oz. can crushed pineapple
1 c. sugar

Preparation

Drain the pineapple, saving juice to pour over cake layers. Mix margarine, flour, sugar and egg in saucepan.
Cook over low heat.
Add pineapple and cook until thick.
Cool for 5 minutes before icing cake.