Corsican Cheesecake(Fiadone)

1. Heat oven to 325'F. Blanch lemon zest in boiling water briefly and plunge into cold water; drain well. Beat egg yolks, sugar and vanilla extract in bowl of electric mixer at high speed until thick and lemon-colored, about 3 minutes.

2. Cream ricotta cheese in food processor fitted with metal blade until smooth. Gradually incorporate ricotta and lemon zest into egg yolk mixture, beating on low speed. Beat until smooth.

3. Beat egg whites in bowl of an electric mixer at top speed until stiff but not dry. By hand, whisk 1/3 of egg whites into cheese mixture and combine thoroughly. Gently fold in remaining egg whites with rubber spatula. Do not overmix, but be sure that mixture is well blended and no streaks of white remain.

4. Pour batter into buttered and floured 9-inch springform pan. Place pan in center of oven; bake until cheesecake is a deep golden brown, pulls away from sides of pan, and a toothpick inserted in center comes out clean, about 1 hour and 30 minutes. Transfer to a rack to cool.

5. Once cooled, cover cheesecake with plastic wrap; refrigerate. (The cake can be made 1 day in advance.)

To serve, release sides of springform pan, leaving cheesecake on pan base. Sprinkle top with confectioners' sugar and garnish with fresh fruit.