White Chocolate Cheesecake

CRUST:  
1½ cups chocolate wafer crumbs  
1/3 cup butter, melted  
  
FILLING:  
8  ounces white chocolate  
1 pound cream cheese  
½ cup granulated sugar  
3 eggs  
1 cup sour cream  
1 teaspoon grated orange rind  
1 teaspoon vanilla  

TOPPING:  
1 cup sour cream  
1 tablespoon granulated sugar  
½ teaspoon vanilla  

(Garnish: chocolate curls & 1 tablespoon icing sugar)  

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Crust: In bowl, combine wafer crumbs with butter; press into 9-inch springform pan. Filling: In top of double boiler over hot, not boiling, water, melt white chocolate; let cool for 5 minutes. Meanwhile, in large bowl, beat cream cheese with sugar until light. Beat in eggs, 1 at a time.  Beat in white chocolate, sour cream, orange rind and vanilla.  Pour over crust; bake in 350F oven for 40 to 45 minutes or until just set. Topping: Combine sour cream, sugar and vanilla; spread over hot cake and return to oven for 3 to 5 minutes or until set. Immediately run knife around edge of cake to loosen. Let cool completely. Garnish: Mound chocolate curls over cake; dust lightly with icing sugar. Chill.
Yield: 10 to 12 servings