Refreshing. Cooling. Minty Sweet.
Squeeze juice from lemons and limes, strain out seeds. In the bottom of a tall pitcher, use a wooden spoon to gently mash the mint and basil leaves. Add the strained juice and simple syrup (I used mint-infused simple syrup available in my pantry). Add cold water (and ice if serving immediately). Taste for sweetness. Chill before serving.