“How to make a speedy or present Drink that Travellers may brew for themselves, when they cannot rellish their Beer or Ale at their Innes. Take a quart of good water, put therein five or six spoonfuls of good Aqua-vitae, and an ounce of Sugar, with a branch of Rosemary, brew them a pretty while out of one pot into another, and then is your drink prepared.”
John White, A Rich Cabinet
Just bring some simple syrup, aqua vitae, and rosemary when you travel, shake it up, and tell your innkeeper you’ll pass on his nasty beer.