Add the cubed watermelon to a blender and pulse until smooth. Add the mint leaves, lime juice & zest and cold water and pulse until blended and no more large mint pieces remain. (Don't blend too much if you don't want that pretty bright pink color to darken.) Taste and add the honey only if necessary and more water if you want to thin it out.
Add a couple ice cubes to each glass. Give the agua fresca a stir and pour into the glasses. garnish with a lime slice and a mint sprig if desired. Enjoy!
*I don't add any honey to mine as I find the in-season watermelon to be sweet enough but add a little if you like a sweeter drink.
*I keep the water minimal so the fresh watermelon really shines, but add a little more if you want a thinner consistency or want to stretch the servings out.
*If you're not a fan of the little bit of pulp in here, run it through a strainer before pouring.