BBC Good Food Cheese Club
Read about the all-new BBC Good Food Cheese Club. Curated cheese, delivered straight to your door.
Pour the milk and double cream into the slow cooker. Add the dark chocolate and milk chocolate, then cover and cook on low for 2 hrs, stirring halfway through cooking.
Remove the lid and stir again, then continue to cook for a further 15-20 mins. Ladle into mugs and top with the marshmallows, dollops of cream and grated chocolate.