Step 1
Preheat oven to 350°F. Prepare an ungreased 10-inch tube pan.
Step 2
In a small bowl, stir together powdered' sugar and flour; set aside.
Step 3
In a large bowl, add egg whites, cream of tartar and vanilla. With mixer at high speed, beat until soft peaks form. Gradually add granulated sugar, about 2 tablespoons at a time, beating until stiff peaks form.
Step 4
With rubber spatula, fold in flour mixture, about 1/4 cup at a time, just until flour disappears. Pour mixture into prepared pan, and with spatula, cut through batter to break any large air bubbles.
Step 5
Bake 40 to 45 minutes, or until top of cake springs back when lightly touched with finger.
Step 6
Invert cake in pan on funnel; cool completely. Using a narrow spatula, loosen sides of cake from pan; remove cake to a serving platter.
Prepare a glaze using 2 cups of Domino Powdered Sugar and 3-4 tablespoons of milk. Glaze cake and decorate with your preferred garnish.