The Douro Valley is mostly red wine (and Port) territory, but its whites can be brilliant too, as long as the site is cooler and at altitude. That’s the case with Rita Marques’ brilliant assemblage of local varieties, dominated by Rabigato, Arinto and Códega de Larinho. Aromas of saffron, fennel and wet stones segue into a palate that has lovely granitic minerality, layers of citrus zest, lime and wild thyme and a mouth-watering finish.