Place the milk in a small pan and heat gently until bubbles appear around the edge of the pan.
Add the chocolate and continue to heat stirring constantly until the chocolate has melted and is blended with the milk.
Add the brandy if using. Pour into mugs and sweeten to taste. Serve topped with a few marshmallows.
You will find chocolate with a high cocoa solid contents with the baking ingredients in most supermarkets. Regular plain chocolate does not have such an intense flavour and is sweeter. Nutrition information is calculated using an online nutrition database - is approximate and is meant as a guideline only. Sugar not included