2 tea bags, such as Earl Grey or English Breakfast
2 cups boiling water
1/2 cup freshly squeezed lemon juice (3 lemons)
1/2 cup sugar syrup (see Cook's Note)
1 cup good bourbon, such as Maker's Mark
1/2 lemon, cut through the stem and cut in 1/4-inch-thick half-rounds
To make sugar syrup, combine 1 cup sugar and 1 cup water in a small saucepan and bring to a boil over medium heat. Cook until the mixture is clear. Cool and refrigerate indefinitely.