Roughly chop 75g of the chocolate and
put into a large jug with the coffee. Bring
300ml of the milk just to the boil, then
pour over the chocolate and coffee mix,
stirring to melt. Once melted, cool.
Tip the cooled mocha milk into the
blender with the ice cream and remaining
milk. Blitz until blended, then pour into
4 tall glasses. Add an extra scoop of ice
cream to each, if you like, then grate a
little of the remaining chocolate on top.