Watermelon smoothie

During a weekend trip, we stopped at a stall where they were selling watermelons straight from the field. Not only did the look amazing, they cost a fraction of what they do in the city, and I just couldn't resist picking up a couple. Since there is only so much watermelon that you can eat, I decided to experiment with a smoothie, and it tasted amazing.

Blend 1 cup watermelon chunks (remove the seeds), 6-8 leaves of mint (mine were freshly plucked), and rock salt to taste, till nice and frothy. Slurp!