2.5 oz. rye or bourbon whiskey
1 oz. sweet vermouth
2 dashes Angostura bitters
0.75 oz. water
Directions: combine all the ingredients, stir gently to combine, and pour or funnel all, or all that fits, into your carrying vessel.
Backlog. The water addition is a nice way that these recipes do dilution without ice. When left out on a cold night the drink ends up cold enough anyway.
The Title is the Hardest Part 