Topping for Congealed Salad recipe

1 egg
1/2 cup granulated sugar
2 tablespoons flour
1/2 cup pineapple juice
2 tablespoons butter
1/4 cup cream cheese
1 envelope Dream Whip

Beat first five ingredients in order, then cook over low heat until thick. Remove from heat and add cream cheese. Add Dream Whip, made according to package directions, but omitting the vanilla extract. Fold into the first mixture and spread on top of a congealed salad.