This was inspired by a summer heat wave and an organic locally grown watermelon I purchased at my local Food co-op. It was literally the best watermelon I had ever tasted. If you can budget for organic try to source local and/or organic. You can often find weekly sales at your local supermarkets and Food Co-ops. Often they will have Flash sales on seasonal organic local produce where they sell it for rock bottom prices. Sign up for their store flyers so you don't miss out. This is perfect for those hot summer days when you need something super cool and refreshing and naturally sugar free.
Whir all the ingredients up in a high powered blender until you have a slushy consistency and ice is crushed.Enjoy!