Ricotta cheese cake

MMMMM----- Recipe via Meal-Master (tm) v8.02
  
       Title: Ricotta Cheese Cake
  Categories: Cakes, Entertain, Cheese
       Yield: 1 servings
  
       3 lb Ricotta; drained
       2 c  Sugar
     1/2 c  Flour; sifted
            Graham cracker crumbs
       8    Egg Yolks
       1    Grated Rind of Lemon
       1 ts Vanilla
     1/2 c  Cream (optional); whipped
       8    Egg Whites
  
   Beat ricotta until smooth, gradually add 1 1/2 cups sugar and egg
   yolks, beating after each addition. Beat in flour, lemon rind and
   vanilla. Beat egg whites with 1/2 cup sugar. Fold whipped cream and
   egg whites into ricotta mixture and turn into a 12" spring form pan
   which has been well-buttered and sprinkled with graham cracker
   crumbs. Bake in a preheated 425 degree oven for the first 10 minutes;
   lower temperature to 350 degrees and bake for 1 hour. Turn off heat
   and allow to cool in oven with door closed. Freezes well. Dust with
   powdered sugar when served.
  
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