Hot Choc Mocha and Biscuit Dunkers

INGREDIENTS For the hot chocolate:

glug of double cream
whole milk (1 pint)
1 tbsp of icing sugar
2 tbsp of cocoa powder
1 heaped tbsp of cornflour
1 tbsp of instant coffee
dark chocolate (100g)
2 tbsp nutella

For the biscuits:

self–raising flour (70g)
butter (50g)
castor sugar (20g)
drop of vanilla extract