This white sangria, our adaptation of Janet Mendel’s Manchegan white wine cooler from “Cooking from the Heart of Spain,” is light, refreshing and relatively low in alcohol, making it a great choice for summer sipping. You might expect a base of Spanish wine, but we preferred Portuguese white vinho verde, an inexpensive young wine with citrusy notes and bright acidity. If you can't find white vinho verde, a dry pinot gris or un-oaked chardonnay would work, too. This recipe can easily be doubled to serve a crowd.