|The black specks in the slush are seeds that refused to oblige.|
Watermelon seeds (read choking hazard if you have a small child) hide in the most random spots, making their removal a total shot in the red.
Unless of course, you choose to mash the fruit and painstakingly fish out the seeds. I did that today, and the fruit got mushy and watery (duh). Fortunately, damage control came in the form of a sprinkle of chia seeds, which sportily soaked up the extra juice to create a lovely snack/healthy dessert (check out the nutrition facts at the bottom of the page).
NoteI used about a tablespoon of chia seeds in a cup of mashed watermelon and let the mixture rest in the refrigerator until the seeds went from black to fluffy white . A few leaves of mint might have been magical.
I have used the word slush quite literally. Any resemblance to the lurid icy slushes you get at restaurants is incidental :)