This slightly spritzy cocktail features India Pale Ale and Old Tom, an 18th-century-style of gin that's a little sweeter and less juniper-forward than modern versions.
Slideshow: Gin Cocktails
Fill a cocktail shaker with ice. Add all of the remaining ingredients except the beer and garnish. Shake well and strain into a highball glass. Top off with the beer and garnish with the lemon wheel.