In Nordic countries, wild blueberries are actually called bilberries. They come from a same berry family, but bilberries grow wild on small shrubs. They're smaller than blueberries, and their intense interior purple color is one of their hallmark characteristics. Many consider bilberries a superfood, due to their health benefits. It stains your fingers, lips and mouth, so you'll get caught if you sneaked out to eat them. There's more bilberries growing wild that Finns have time to pick, so when the season arrives, the best thing to do is go sit in the forest and eat. Try traditional Finnish bilberry milk, the healthiest shake or smoothie in the world: combine fresh or frozen bilberries, milk and some sugar, and cinnamon. Or make a soup out of them.