Melt Semi sweet chocolate in a 25odegree oven.whisk together heavy cream, milk, and egg yolks toghther.Put cocoa,sugar,and cornstarch in a heavy saucepan. whisk in the yolk mixture on medium heat stirring occasionallyfor 5 min. then stir mixture constanly until mixture boils. Stirring 1 min. more stir in melted chocolate vanilla and butter. pourinto baked or grahamn cracker crust.
to with meringue or whipped cream.and chocolate shavings