Starbucks changes with the seasons almost as reliably as the weather. Spring brings floral flavors and colorful iced drinks. Summer shifts toward cold brew, Refreshers, and shaken espresso. Fall means pumpkin, pecan, chai, and baking spices. Then winter arrives with pistachio, peppermint, caramel brulée, gingerbread, and the holiday drinks people wait all year to order. …
