Agua de Sandia
3 to 4 cups watermelon, cut in large chunks
4 cups water
1/2 to 2/3 cup sugar
Fill a blender cup with watermelon. Add the 4 cups of water. Puree until smooth.
Strain the pureed mixture into a 2 quart pitcher.
Add enough water to fill the pitcher. Sweeten with sugar. (I used 1/2 cup, but you could use more or less.)
Serve with lots of ice or refrigerate until ready to serve.