Щи is a traditional Russian soup made primarily from cabbage, which can be either fresh or fermented. It often includes other ingredients such as potatoes, carrots, and various meats or mushrooms. The soup is typically seasoned with herbs and spices, giving it a rich flavor. This dish has a long history in Russian cuisine and is often served with sour cream and rye bread. Variations of щи exist, including борщ, which features beets, and рассольник, which includes pickles. It is a staple in many Russian households, especially during the colder months.