1 c watermelon, cubed
1/3 c ice
2 Tbs lemon juice
1 Tbs granulated sugar
In your blender add the watermelon, ice, lemon juice, sugar and puree until almost smooth. I think a little chunky texture is nice, but do what you like best. Serve immediately, I alternated mine with layers of frozen blueberries.
p.s. Sorry for the terrible photo, I forgot until 8:15 last night that I had forgotten to prepare something, yikes!