Lingonberries are widely eaten in Sweden (they taste a bit like cranberries, if you want to try a more local version). Often made into smoothies and jams, these Arctic fruits grow wild in nature, mostly in cold areas like Scandinavia and other parts of North America and Northern Asia. They are particularly popular in Finland.
Smaller than cranberries, they have bright red flesh and a sweet tangy taste. They are good on porridge or in smoothies and yoghurt, and some people use them in desserts and vegan baking.