1. Combine the cocoa, sugar and pinch of salt in a saucepan. Blend in the boiling water. Bring this mixture to an easy boil while you stir. Simmer and stir for about 2 minutes. Watch that it doesn't scorch. Stir in cups of milk and heat until very hot, but do not boil! Remove from heat and add vanilla.

2. Set the cream aside so people can add it themselves if they wish