Cut watermelon in half and scoop out the flesh. Freeze the watermelon flesh until completely solid (at least a few hours). Add the frozen watermelon, frozen strawberries, and coconut cream to a blender. Blend until smooth and creamy, stopping and scraping down the sides as needed if the mixture is too thick. The less liquid you add, the thicker and creamier the sorbet will be. Scoop the finished sorbet back into the watermelon rind and enjoy!
