Watermelon agua fresca

Halve a seedless watermelon, taste it for sweetness, and scoop one half into a blender down to the rind.

Add a couple cups of cold water, cover with a towel over the lid, start low and blend on high about a minute until liquefied.

Optionally pour through a fine mesh strainer, moving it with a spatula, to remove the fibrous bits; skim the foam if it bothers you.

Make simple syrup: equal parts sugar and water in a saucepan over medium, stirring until the sugar dissolves and it turns clear (no need to simmer); cool to room temperature.

Sweeten the juice with simple syrup to taste, pour into a pitcher and refrigerate; serve ice cold over ice.