Sift sugar. Measure. Fold gradually into egg whites. Carefully fold in egg yolks which have been combined with flavorings and salt. Sift flour. Measure and sift carefully. Fold into mixture. Cover a baking sheet with un-oiled paper. Shape the lady fingers with a pastry tube having each about 4 inches long, and 1 inch wide. Bake in moderate oven (375 F) 10 minutes. As soon as removed from oven slip from baking sheet, using a wide spatula. Place the bottom of one lady finger on the bottom of another. Lay on waxed paper. Cool. Dust with powdered sugar. 14 servings. ----