1/2 of a watermelon
2/3 cup sprite or other lemon-lime drink
ice cubes to taste ( more for more slush; less for more frothy)
Step 1: Cut out watermelon into cubes and then seed it.
Step 2: Put watermelon in a blender
Step 3: Add sprite and ice
Step 4: Blend on medium for 2 minutes, stiring every 30 sec
Step 5: Pour and enjoy