The Paper Plane — a straightforward box-step of a recipe made with precisely equal proportion of four ingredients — may be the best bourbon cocktail that you're not drinking.

A Little Background. We talk a lot about old-as-hell cocktails here. Cocktails borne from Prohibition. Cocktails that predate both World Wars. Cocktails that predate the damn War of 1812.

Preparation. Combine 1½ oz. amaro (preferably Nonino), 1½ oz. Aperol, 1½ oz. bourbon, 1½ oz. fresh lemon juice, strained, in a cocktail shaker filled with ice.Shake vigorously until outside of ...