Angel Food Cake
["1 1/2 c. cake flour", "1 1/2 c. egg whites", "1 1/2 tsp. cream of tartar", "3/8 tsp. salt", "1 3/4 c. sugar", "1 1/2 tsp. vanilla"]
["Sift flour once; measure and sift four times more.", "Beat egg whites and salt with mixer on low; when foamy white, add cream of tartar and continue to beat on high until stiff peaks form, but not dry.", "Fold in sugar carefully, 2 tablespoons at a time, then add flavoring.", "Sift small amount of flour at a time into egg mixture until all is used.", "Pour batter into an angel food cake pan and bake in slow oven.", "Begin at 275\u00b0 for 30 minutes, then increase to 325\u00b0 for 30 minutes longer."]
["cake flour", "egg whites", "cream of tartar", "salt", "sugar", "vanilla"]