This cocktail reminds me of the Coffee Cocktail. It is made with Cognac and Ruby Port, but instead of the egg it gets its frothiness from heavy cream. The "chocolate" comes from creme de cacao. The Chocolate Punch dates from approximately the same vintage as the Coffee Cocktail; DeGroff found the recipe in William Schmidt's The Flowing Bowl (1891).

The Chocolate Punch, a delicious dessert drink
