Chocolate truffles are an easy holiday candy to make, and they last a while, so you can make them ahead. You can use any type of flavoring in the chocolate. Vanilla is used here, but peppermint or hazelnut would also work well. You can also infuse the cream with flavors such as Earl Grey tea, lavender, or rose. Just steep the hot cream with your flavor, and then strain it before pouring it over the chocolate.