After a long day of fun in the sun, it?s time to go inside and find a cold snack to help you cool down. There is an entire watermelon in the refrigerator, but having slices of watermelon sounds boring. That?s why you?ve decided to repurpose this tasty fruit by blending it up with some crushed ice to create a delicious watermelon cooler slushy. Follow the instructions to chop up fresh watermelon. Then toss the sliced watermelon into the blender with some ice and turn the blender on to watch the fruity drink mixture whirl.