Mimosa cake with lemon butter cream frosting

---------- Recipe via Meal-Master (tm) v8.05
  
       Title: MIMOSA CAKE WITH LEMON BUTTER CREAM FROSTING
  Categories: Cakes
       Yield: 1 Servings
  
   1 1/4 c  Sifted cake flour
   1 1/2 c  Sugar
      10    Egg whites
   1 1/2 ts Cream of tartar
     1/4 ts Salt
       4    Egg yolks
       1 ts Grated lemon rind
       1 ts Vanilla
  
    1. Preheat oven to 375.
    2. Sift flour and 1/2 cup of the sugar onto wax paper; set aside.
    3. Beat egg whites, cream of tartar and salt in a large bowl with electric
   mixer at high speed until foamy. Beat in remaining 1 cup sugar, 1
   tablespoon at a time, until meringue forms soft peaks.
    4. Fold flour mixture into meringue, one-third at a time, until completely
   blended.
    5. Beat egg yolks in a small bowl with electric mixer at high speed until
   thick and lemon colored. Beat in lemon rind and vanilla.
    6. Fold half of the meringue batter into the beaten egg yolks until no
   streaks of white remain.
    7. Spoon batters by tablespoonfuls, alternating colors, into an ungreased
   10-inch tube pan. (Do no stir batters in pan.) 8. Bake in preheated oven
   for 35 minutes, or until top springs back when lightly pressed with
   fingertip.
    9. Invert pan, placing tube over quart-size soft-drink bottle; let cake
   cool completely. Loosen cake around the edge and the tube with a spatula.
   Cover pan with serving plate; turn upside down; shake gently; remove pan.
    10. Frost with lemon flavored butter cream frosting.
   
    This recipe originally had directions for lemon frosting, but they have
   apparently been misplaced.
  
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