Hawthorn berries (shānzhā, 山楂)

Though best known as the primary ingredient of the much beloved haw flake candies, hawthorne is actually a common ingredient used in traditional Chinese medicine. The berry itself is incredibly sour, like a crabapple, and traditionally used as a digestive aid and to reduce indigestion and heartburn. There is some evidence in modern research that it also might help treat cardiac weakness. But best off, it’s just a delicious addition to candies, teas and baked sweets.