Classically made with 2 parts whiskey, 1 part dry vermouth, and 1 part pineapple juice, this vintage cocktail is opened and improved by splitting the vermouth...
An understated flavor profile, but tasty. I added just the tiniest bit of St. Germain (5 mL or less) to enhance the pineapple just a bit and upped the rye by 15 mL - it seemed to round it out nicely.