Angel Food Cake

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° for 30 minutes, then increase to 325° for 30 minutes longer.