Kippers - every single UK B&B we’ve ever stayed at served kippers as a breakfast option.
I remember in 1993, going to Scotland for the first time, staying in a small B&B there, just four rooms, and when it came time for breakfast, the man came round to take our orders, which went like this (we were the only Americans, everyone else was British):
“We’d both like the kippers, please.”
“Oh, well, the kippers sound good, yes dear? Two for kippers.”
“We’ll have the kippers, thank you.”
“Uhhhhhhhh…scrambled eggs and bacon for us, please.”