4 sq. Hershey's unsweetened baking chocolate
1 can (14 oz.) sweetened condensed milk
2 tsp. vanilla
2 c. cold whipping cream
9" baked pastry shell

In 2 quart glass measure or large microwave safe bowl, place chocolate, condensed milk and vanilla. Microwave on high, 2-4 minutes, stirring after each minute, until chocolate is melted and mixture is smooth when stirred. Cool to room temperature, about 1 1/2 hours. Beat until smooth.

In large mixer bowl, beat whipping cream until stiff; gradually fold into chocolate mixture. Pour into baked shell. Refrigerate 4 hours or until set. Garnish as desired.