This is the only way to cook bratwurst in Wisconsin. The brats are incredibly tasty! If you can get fresh bratwurst from a sausage shop, do it... it is worth the extra cost. Serve with brown mustard on substantial hoagie rolls, never on hot dog buns. Mustard is important and must always be stone ground. Add warm sauerkraut and ketchup, if you like. Chow down! Think about those Wisconsin summers! Listen to some polka!