Swiss Miss Marshmallow Hot Cocoa Mix :: Directions for Me Preparation with 6 oz. water: Place 2 tablespoons of cocoa mix into a cup. Gradually stir 6 oz. (3/4 cup) hot (not boiling) water into mix. Preparation with 8 oz. water: Place 3 tablespoons of cocoa mix into a cup. Gradually stir 8 oz. (1 cup) hot (not boiling) water into mix. To heat water in microwave, place water in a microwave-safe ...