Preheat the oven to 180'C.
Mix the hot water with the cocoa powder. Cream together the sugar, butter and cocoa mixture until fluffy. Beat the eggs in one at a time, making sure the mixture does not split. Slowly sift in the flour, gently folding and incorporating it into the mixture until smooth and then add the milk.
Line your muffin tray with cupcake cases. Spoon or pipe the mixture into the moulds. Transfer to the oven and bake for 10 to 15 minutes. Check the cupcakes are cooked using a skewer - if it comes out clean, the cakes are cooked through. Allow to cool thoroughly before adding topping with your preferred icing.
«Try adding chocolate chips or chopped nuts to the cake mixture. Top with your favourite icing and decorations to finish.»