Mocha Hot Chocolate

Directions

1. 1
   In a large heavy saucepan combine the cocoa powder, the sugar, the espresso powder, the vanilla, a pinch of salt, and 1 cup cold water and heat the mixture over low heat, whisking, until the cocoa powder is dissolved and the mixture is a smooth paste.
2. 2
   Gradually add the milk and the half-and-half, both scalded, and heat the mixture over moderately low heat, whisking, until it is hot, but do not let it boil.
3. 3
   (For frothy hot chocolate, in a blender blend the mixture in batches until it is frothy.)