Dark Chocolate Truffles

Procedure

1. Heat the cream and vanilla to a simmer.
2. Pour over the chopped chocolate in a bowl. Stir until the chocolate is completely melted and blended in. Cool the mixture until it is just slightly warm to the touch.
3. Stir in the butter until it is melted and completely blended in.
4. Let the mixture stand until it starts to thicken, t