Preparation

In a large saucepan, boil 2 cups of water and the sugar. Remove from the heat and add the tea bags. Steep for 8 minutes and then discard the bags. Add the remaining 2 cups of water. Transfer to a pitcher and chill. Add the mint and crush with a wooden spoon until fragrant. Stir in the bourbon, lemon juice and lime juice. Serve in tall glasses filled with ice. Garnish each glass with a mint sprig.