Lefse is a Norwegian potato flatbread, usually topped with large amounts of butter and sugar, most commonly eaten around Christmas. Traditional Norwegian dishes include lutefisk, smalahove, pinnekjøtt, raspeball, and fårikål. A Norwegian speciality is rakefisk, which is fermented trout, consumed with thin flatbread (flatbrød, not lefse) and sour cream. The most popular pastry is vaffel; it is different from the Belgian vaffel in taste and consistency and is served with sour cream, brown cheese, butter and sugar, or strawberry or raspberry jam, which can all be mixed or eaten separately.