Kanttarellikeitto is a traditional soup originating from Finland. The soup is usually made with a combination of chanterelle mushrooms, butter, onions, parsley, flour, vegetable stock, heavy cream, salt, and pepper. The mushrooms are chopped and sautéed with onions and parsley in butter over medium-low heat.

Once the moisture evaporates, the mixture is sprinkled with flour and stirred. The stock is added gradually, and the soup is then simmered for some time before cream is added to the pot. Kanttarellikeitto is seasoned with salt and pepper, garnished with chopped parsley, and served hot.