Preheat oven to 350 F.
Mix sugar, salt, flour and orange rind with egg yokes; add milk. Stir in apples.
Beat egg whites until stiff peaks form. Fold into sugar mixture.
Spoon mixture into 6 to 8 ungreased custard cups, or a 1-1/2 quart
baking dish. Set in a pan of hot water (1" deep). Steam bake at 350 F
about 30 minutes for cups, or about 45 minutes for dish. Serve warm or
cold.
Serves 6 to 8. Mixture may be poured into a 9" unbaked pie shell. Bake 45 to 50 minutes at 375 F.