Coffee Stain is tasty watered down cocktail at 0.4 standard drinks. Stirred with 30ml chestnut liqueur briottet and 30ml condensed milk with 190ml coffee brew and best with morning tea snacks. Just heat the serving glass then brew long black coffee and add the chestnut liquuer to glass. Pour in the long black coffee and stir in the condensed milk and drop one toasted chestnut into glass and served in a coffee glass warm.