AGUA FRESCA, ANYONE? Aguas frescas come in a whole variety of flavors and can be made from practically any fruit. Maura, from The Other Side of the Tortilla, has the best recipe for making un agua fesca de piña. Before reading her article, I had no idea how to tell if a pineapple was ripe (do you?), but now I can pick the best piña in the store.