Add all of the ingredients to a high-speed blender.
Blend on high for about 60 seconds, or until the ice is fully crushed and smooth.
Let rest for 30 seconds to allow the foam to settle.
Serve immediately, over extra ice if desired.
Notes
If you won’t consume all of this at once, make smaller batches by cutting the recipe in half or even fourths. I prefer to use stevia to keep the sugar content down, but any natural sweetener like maple syrup or honey will work well in this recipe.