Hiyayakko is a tofu block served cold. The toppings put on the tofu vary between households and restaurants, but a standard combination is sliced leeks with dried bonito flakes and soy sauce. Hiyayakko can be served with ordinariy meals and also with beer. It is most popular during the summer season. There are two kinds of tofu used in hiyayakkos, the most popularly used kind is the kinugoshi type, and the less popularly used kind is momen.