or a potsticker.
Pierogi may be stuffed (singularly or in combinations) with mashed potatoes, fried onions, quark or farmer cheese, cabbage, sauerkraut, ground meat, mushrooms, spinach, or other ingredients depending on the cook's preferences. Dessert versions of the dumpling can be stuffed with sweetened quark or with a fresh fruit filling such as cherry, strawberry, raspberry, bilberry, blueberry, apple, or plum; stoned prunes are sometimes used, as well as jam.