fish sandwich with matjes herring and onion

german germany appetizer art brathering bread broetchen brotchen bun cuisine cured delicacy delicious dish european food fastfood fillet fischbroetchen fischbrotchen fish fresh gourmet hamburg hearty hering herring krautermatjes lunch marinated matjes nobody northern onion outdoor raw roll sandwich seafood snack style table takeaway tasty traditional typical white young sanwich