Kreplach vs. Pierogi — What's the Difference?

Kreplach (from Yiddish: קרעפּלעך, romanized: Kreplekh) are small dumplings filled with ground meat, mashed potatoes or another filling, usually boiled and served in chicken soup, though they may also be served fried. They are similar to Polish and Ukrainian uszka, Russian pelmeni, Italian ravioli or tortellini, German Maultaschen, and Chinese jiaozi and wonton.

Pierogi ( pih-ROH-ghee) are filled dumplings made by wrapping unleavened dough around a savoury or sweet filling and cooking in boiling water. They are often then pan-fried before serving.

(plurale tantum) Small dumplings of Eastern European origin, filled with meat or cheese and served usually in soup.

A semicircular dumpling with any of various fillings, such as finely chopped meat or vegetables, that is often sautéed after being boiled.

(North America) A square- or crescent-shaped dumpling of unleavened dough, stuffed with sauerkraut, cheese, mashed potatoes, cabbage, onion, meat, or any combination of these, or with a fruit filling.