Frozen Chocolate Pie

1 9" baked pie shell
1 cup confectioners' sugar
1/2 cup soft butter
6 squares (1oz each) semisweet chocolate, melted and cooled
1 tsp. vanilla
4 eggs
1 cup chilled whipping cream
2 tbsp. confectioners' sugar
8 servings
In small mixer bowl, blend 1 cup confectioners' sugar and the butter on low speed until fluffy.
Blend in chocolate and vanilla.
On high speed, beat in eggs, one at a time, beating thoroughly after each addition.
Pour into baked pie shell; cover with plastic wrap.
Freeze several hours or until firm.
For easier cutting, remove from freezer 15 minutes before serving; remove plastic wrap.
In chilled bowl, beat cream and 2 tbsp. confectioners' sugar until stiff; pile onto pie.
If you wish, garnish with chocolate curls.