Northern Germany's iconic seaside street food: a crusty German bread roll filled with tender young Dutch-style Matjes pickled herring, crisp sliced onions, and dill.
Slice fresh Kaiser rolls in half, leaving a hinge at the back. Spread generously with cold butter.
Tuck a crisp leaf of lettuce into each roll.
Fold a tender Matjes fillet neatly inside each buttered roll.
Shower with raw onion rings and fresh dill sprigs. Serve immediately with a cold Astra or Flensburger beer.