Chocolate Mousse

13oz bittersweet Chocolate
2 Tbl unsalted butter
2 egg yolks
1 1/2 c heavy cream
2 Tbl sugar
1 tsp vanilla extract

In microwave safe bowl, combine chopped chocolate and butter. Heat in the microwave until melted, about 35 seconds. Stir. Whisk in yolks and set aside to cool. Pour cream into chilled bowl. Beat on medium till it starts to thicken. Add sugar and vanilla and whisk until the cream starts to form stiff peaks. Carefully fold the whipped cream into the cooled chocolate mixture. Serve cold. 8-10 servings