Triple chocolate custard

Heat the milk in a saucepan. Mix in a bowl the cornstarch, cocoa powder, sugar and a pinch of salt.

Pour 6 tablespoons of warm milk into the mixture and stir. Then pour the rest of the milk in a thin stream while constantly tapping the mixture.

Pour back into the pan and let it dip at a low setting until custard. Stir in the finely chopped white and milk chocolate through the custard.