"This refreshing drink is served by roadside vendors all over Mexico. Not too much fruit, not too much sugar, just a beautiful way to quench your thirst on a summer day...."
INGREDIENTS
•
8 cups cubed seeded watermelon, (about 6 pounds with the rind), divided
•
1 cup water, divided
•
1/3 cup sugar, divided
•
1/4 cup fresh lime juice
•
1 liter (4 cups) club soda, or seltzer water, well chilled
•
Lime slices, for garnish