Microwave Chocolate Mousse Pie

Instructions
=== In 2 quart glass measure or large microwave safe bowl, place chocolate, sweetened condensed milk and vanilla. Microwave at high (100%) 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. Refrigerate leftovers. ===