Ingredients: 1 1/2 oz bourbon, 1 oz fresh lemon juice, 1/2 oz simple syrup. Add all ingredients to an ice-filled glass, stir, then top with soda water.
Source: Mr. Boston
Basically a Tom Collins but with bourbon, right? For me the flavor of the bourbon wasn’t balanced out enough (but I’m not a big bourbon fan), and the soda water made it taste odd for some reason. Not really a winner.