Watermelon Agua Fresca

Watermelon Agua Fresca (Adapted from Eating Well) 8 cups cubed seeded watermelon, divided 1 cup water, divided 1/3 cup granulated sugar, divided 1/4 cup fresh squeezed lime juice 1 liter seltzer water, pre-chilled Puree half of the cubed watermelon, half the water and half the sugar in a blender. Pour through a coarse strainer into a large container. Repeat with the remaining watermelon, water and sugar. Stir in lime juice. Refrigerate until very cold - at least 4 hours. Before serving, stir in seltzer and garnish with fresh lime slices if desired. Main post here