Espresso and Lime

1 Gather 1 cup of fresh lemon juice (4-5 large lemons) and set aside
2 Bring 1 cup of water to a boil in a small saucepan
3 Add 1 cup of granulated sugar into the boiling water and stir until all of the sugar has dissolved
4 Remove the saucepan from the heat
5 Add the fresh lemon juice into the simple syrup (the water and sugar) and stir to combine
6 Transfer the lemon simple syrup into a large juice carafe
7 Add the remaining 3 cups of water and stir to combine
8 Refrigerate to chill or serve immediately over ice