Created by Tisme on March 19, 2015
Step 1: Fill a medium saucepan with 6cm of water & place a heatproof bowl on top of the pan so that it fits snugly but doesn't touch the water; lower the heat to a very gentle simmer.
Step 2: Break up the chocolate and add to the bowl, then leave to melt for 4-5 mins, stirring regularly.
Step 3: In another pan bring cream and all but 1/4 cup of milk to scalding point. Stir half scalded mixture into melted chocolate and mix well, then pour back into the saucepan and set over low heat. Mix in the reserved 1/4 cup milk with the cocoa, sugar and cornflour to make a smooth paste. Stir into the chocolate mixture and whisk or stir constantly until it comes to the boil and thickens slightly.
Step 4: Add vanilla, if desired and beat briskly with wire beater or hand rotary beater until mixture is foamy.
Step 5: Pour into cups and serve immediately topped with whipped cream.