Sift 2 tablespoons Stevita Organic Spoonable Stevia and flour together. Set aside. In a large bowl, beat egg whites, cream of tartar, and 3 tablespoons Stevita Organic Spoonable Stevia till stiff peaks form. Slowly sift about one-third flour mixture over stiff egg whites; fold in. Continue sifting and folding remaining flour mixture. Pour into an ungreased, 10-inch tube pan. Bake at 350°F for 40 to 45 minutes or till top springs back from a light touch. Immediately invert cake - leave in pan. This helps prevent the cake from falling. Allow to cool completely. Loosen sides of cake from pan with a knife; remove cake.