Preheat oven to 375. Put the pie crust in an 9 or 25 cm springform pan; pressing it on the bottom and up the sides. Prick generously with a fork. In a large bowl combine the filling ingredients. Beat 50 strokes by hand. Pour into crust-lined pan and bake 50 to 55 minutes or until center is set and edges of crust are golden brown. Cool 1 hour. Remove sides of pan. Cool completely. In large bowl, beat topping ingredients until stiff peaks form. Spoon or pipe topping over filling. Garnish with chocolate curls. Store in refrigerator.This is from the Pillsbury Bake-Off.