Kreplach are dumplings that are commonly served during Purim. They are made by rolling out dough and cutting it into small squares. The squares are then filled with a savory filling, such as ground meat or mashed potatoes, and folded over to form a triangle shape. The dumplings are then boiled until cooked through and served in a flavorful broth. Kreplach are a delicious and comforting dish that is often enjoyed as part of the Purim feast.