1 tsp Sugar syrup
Juice of 1/2 Lemon
1 splash Ginger ale or club soda
1 1/2 oz Bourbon (Makers Mark)
Stir with ice and add more ginger ale (or club soda) to taste. Stir well.
It's tangy and sweet, but you can modify the sweetnes by substituting club soda for ginger ale. Both add a nice bubbly character.