1. Prepare watermelon and raisins
2. Peel the watermelon and cut into small pieces and put it in the food processor
3. Beat into watermelon juice and strain
4. Strain the watermelon juice
5. Prepare the ice fry machine, this mini ice fry machine needs to be frozen overnight
6. Pour the watermelon juice on the frying ice machine
7. Continue to stir fry with a spatula until it becomes clumpy
8. Put the watermelon smoothie into a glass and garnish with California raisins.