Angel Food Cake
["1 1/2 c. egg whites", "1 1/2 tsp. cream of tartar", "1/2 tsp. salt", "1 1/2 c. sugar", "1 c. sifted cake flour", "1/2 tsp. each: vanilla and almond extract"]
["Beat egg whites in bowl until foamy.", "Add cream of tartar and salt.", "Beat until medium-stiff peaks form.", "Fold in 1 cup sugar gently, using 25 strokes.", "Sift 1/2 cup sugar and flour together 3 times.", "Fold into egg whites, 1/4 at a time, using 15 strokes after each addition.", "Fold in flavoring, using 10 strokes.", "Spoon into ungreased 10-inch tube pan.", "Cut through batter with knife. Bake at 350\u00b0 for 45 minutes or until cake tests done.", "Invert on funnel to cool.", "Loosen edges with knife.", "Remove from pan."]
["egg whites", "cream of tartar", "salt", "sugar", "cake flour", "vanilla"]