STEPS
INGREDIENTS
This is how much watermelon you should start off with in case you don't like the drink you don't want to waste a whole watermelon. This is a bit more than 6 cups.
Prepare yourself for the next part by getting the sugar, ice, and lime juice measured.
Fill the magic bullet cup a little bit more than half way with watermelon
Add 1/4 cup limeade juice drink
Fill the remaining space in the cup up with ice.
Put the lid on tight (make sure it's tight if you have a magic bullet because they tend to leak) and BLEND!
Final result
 A lot of paper towels 
 A lot clear counter top
1.0 3-5 lb Watermelon
6.0c Of Chopped Watermelon
1.0c White Sugar
2.0c Ice
1/2c Limeade juice 
2.0c Pure Lime Juice (optional)
375.0ml Finlandia Vodka (optional)
1.0 Magic Bullet or Blender

How to make a spectacular watermelon granita slushie

Make a Spectacular Watermelon Granita Slushie