In the Pfalz the crust on the bottom is salty rather than sweet, and a classic pairing is a bowl of potato soup with a Dampfnudel on the side.
Sweet yeast dough is formed into rolls and steamed in a tightly covered pan over a little salted water and fat until the bases turn golden and crackly. Market stalls and bakeries serve them warm with vanilla or wine sauce, or alongside potato soup.