This angel food cake is just like grandma use to make.
1 Preheat oven to 350 degrees F (175 degrees C). Sift cake flour and confectioners sugar together 5 times and set aside.
2 In a large clean bowl, whip egg whites with a pinch of salt until foamy. Add cream of tartar and continue beating until soft peaks form. Gradually add sugar while beating, and continue to beat until very stiff. Add vanilla.
3 Quickly fold in flour mixture. Pour into a 10 inch tube pan.
4 Bake at 350 degrees F (175 degrees C) for 45 minutes.