Break up the chocolate and place in a large bowl with the Buttery.
Meanwhile, bring the cream to the boil and then pour it over the chocolate.
Stir gently until all the chocolate has melted but try not to create bubbles in the mixture.
Leave this to cool for 2 minutes and then add the butter in two stages. Once the butter has melted the ganache should be smooth and glossy with no oil slicks.
Set the mixture in the fridge for a minimum of 3 hours or overnight.
Remove the mixture from the fridge and leave for approximately 15 minutes to come to room temperature.
Put cocoa into a bowl and dust your hands with it.
Roll the ganache into balls and then roll them into the cocoa.
The truffles can be stored for approximately two days.
You can try wrapping them individually in squares of cheap tin foil and then popping them into small kilner jars, gift bags or inexpensive home made boxes. You can find out how to make impressive gift boxes at Rubber Stamping