salted beef tongue; gyutan with salt
A common yakiniku or izakaya dish: grilled beef tongue seasoned simply with salt, often served with lemon.
At a yakiniku restaurant, I first order salted beef tongue.
タン塩にレモンを絞るとさっぱりする。
Squeezing lemon over salted beef tongue makes it refreshing.
From タン (beef tongue, from English 'tongue') + 塩 (salt).