In Guys and Dolls, Jean Simmons and Marlon Brando drank their milk punch by Havana moonlight, but it is more commonly served at brunch or as a morning-after pick-me-up. You can vary the amount of sugar to taste, but keep in mind that unlike daiquiris or Mai Tais, milk punch should be relatively sweet.
How to Make the Ultimate Umami-Bomb Vegetarian Demi-Glace
1/2 cup milk
1/4 cup white rum
2 tablespoons dark Jamaican rum
1 tablespoon sugar
2 or 3 drops pure vanilla extract
Fill a shaker with ice. Add 1/2 cup milk, 1/4 cup white rum, 2 tablespoons dark Jamaican rum, 1 tablespoon sugar and 2 or 3 drops pure vanilla extract. Shake well and strain into an old-fashioned glass or empty coconut shell.