Vanilla sponge cake

---------- Recipe via Meal-Master (tm) v8.05
  
       Title: Vanilla Sponge Cake
  Categories: Cakes
       Yield: 12 servings
  
       1 c  Cake flour; sifted
     1/2 c  Sugar; divided
       4    Egg yolks
     1/2 ts Vanilla extract
      10    Egg whites
       1 ts Cream of tartar
     1/2 ts Salt
     3/4 c  Sugar
     1/2 ts Vanilla extract
  
   Recipe by: Southern Living
   Preparation Time: 0:30
   Sift flour and 1/2 cup sugar together 3 times; set aside.
   Beat egg yolks at high speed of an electric mixer 4 minutes
   or until thick and lemon colored.  Add 1/2 teaspoon of
   vanilla extract; beat at medium speed an additional 5
   minutes or until thick.  Set aside. Beat egg whites until
   foamy.  Add cream of tartar and salt; beat until soft peaks
   form.  Add 3/4 cup sugar, 2 tablespoons at a time; continue
   beating until stiff peaks form. Sprinkle one-fourth of
   flour mixture over egg whites; gently fold it in.  Repeat
   procedure with remaining flour, adding one-fourth of the
   mixture at a time. Fold 1/2 teaspoon vanilla into the egg
   white mixture.  Gently fold beaten egg yolks into egg white
   mixture. Pour the mixture into an ungreased 10-inch tube
   pan.
   Bake at 350 degrees for 45 to 50 minutes or until cake
   springs back when lightly touched.  Invert pan carefully.
   Let cake cool in pan 40 minutes.  Loosen cake from sides of
   pan using a narrow metal spatula; remove from pan.  Yield:
   one 10-inch cake.
  
 -----