Watermelon Limeade

Watermelon was on sale today, it made me think of this crazy good, refreshing drink.

1 seedless watermelon (about 6 pounds), cut in to chunks
3/4 cup lime juice (10 - 12 limes)
2 - 4 Tbsp. sugar
ice

Using a blender, puree the lime juice and watermelon together, working in batches. Pour the puree in to a pitcher, stir in 2 Tbsp. of sugar until dissolved; add more to taste if needed. Serve over ice, it looks gorgeous garnished with fresh lime slices and mint leaves.
If you prefer a thinner consistency or more subtle taste, you can dilute it with water.