Whipped Chocolate Frosting

I got this from a bakers chocolate box and it is really yummy!!!

In a medium microwave-safe bowl , place chocolate pieces and whipping cream.

Microwave on high for 1 1 / 2 to 2 minutes , until chocolate is melted and mixture is smooth when stirred.

Refrigerate until thoroughly chilled.

In a large mixer bowl , beat the powdered sugar , butter and vanilla unil thoroughly blended.

Gradually add chocolate mixture , beating until stiff.

Use immediately or cover and keep refrigerated.

semisweet baking chocolate, whipping cream, powdered sugar, butter, vanilla extract