Cincinnati mett is smoked and then grilled, unlike the German mettwurst it descends from, which is usually sold raw.
A smoked pork sausage (some makers blend in beef) seasoned with pepper, garlic and mustard seed, grilled and served on a bun with kraut, onions and spicy mustard at Great American Ball Park and Oktoberfest Zinzinnati stands.
Why it's made this way: Cincinnati's 19th-century German butchers developed the local mettwurst, and it remains a city staple: the Reds sell about 75,000 pounds of Queen City Sausage brats and metts a season, and mett sandwiches fill the menus at Oktoberfest Zinzinnati, billed as the largest Oktoberfest in the US.