Heat the heavy cream just under boiling, it will boil quickly so put it to simmer until it’s hot.
Chop the chocolate and place in a glass bowl. Pour the hot heavy cream over the chocolate to melt the chunks.
Add the vanilla, hot coffee and Grand Marnier
Mix until melted and refrigerate for 45 minutes. Place on a platter and let your guests dip away
With a small scooper or spoon, place little balls on parchment paper. They don’t need to be perfectly shaped, as truffles are usually not exactly round.