Starbucks' Pumpkin Spice Latte is a seasonal favorite that has a secret recipe known only to Starbucks baristas. The drink is made with a blend of espresso, pumpkin spice syrup, steamed milk, and topped with whipped cream and pumpkin spice sprinkles. The exact proportions and ingredients used in the pumpkin spice syrup are a closely guarded secret. The Pumpkin Spice Latte has become a fall tradition for many coffee lovers around the world.