Watermelon agua fresca

Disinfect the watermelon, cut off the ends and peel around it.

Remove any white spots and cut into pieces small enough for the blender.

Reserve one slice and cut into strips, then small cubes, for garnish.

Working in batches, blend the watermelon with the juice of one lemon, sugar to taste and one cup of water until smooth.

Transfer to a jar, straining if wanted.

Blend the rest of the watermelon with the other cup of water until smooth; strain into the jar and mix.

Taste and add sugar if needed; add mint leaves and the cubed watermelon, and ice before serving.