Cheesecake with Pineapple Recipe

In a small bowl, combine the graham cracker crumbs, sugar and butter. Press onto the bottom of a greased 10-in. springform pan; set aside. In a large bowl, beat cream cheese and sugar until smooth. Beat in the sour cream, milk, orange peel and vanilla. Add egg yolks; beat on low speed just until combined. In a small bowl, beat egg whites until stiff peaks form; fold into cream cheese mixture. Pour over crust. Place pan on a baking sheet. Bake at 325 ° for 70-75 minutes or until center is almost set. Cool on a wire rack for 10 minutes. Carefully run a knife around edge of pan to loosen; cool 1 hour longer. Cover and refrigerate for at least 6 hours or overnight. Remove sides of pan. For topping, combine sugar and 2 tablespoons water in a small saucepan. Bring to a boil over medium heat; cook for 2 minutes. Stir in pineapple. In a small bowl, combine cornstarch and remaining water until smooth; stir into pineapple mixture. Bring to a boil; cook and stir for 2 minutes or until thickened. Cool completely. Spread topping over cheesecake. Store in the refrigerator.