Eat in deutz, Cologne

Lommerzheim ★ 4.4

Lommerzheim in Cologne-Deutz has served Kölsch and the city's most argued-over pork chop since 1959 in a room unchanged since opening; cash only, no pretence.

Order: The Kotelett, grilled pork chop with mustard and rye bread; the reason people queue for over an hour

Tip: Cash only. Arrive before 18:00 on weekdays or face a long wait. Traditional Kölsch service: glass replaced automatically until you put a coaster on top.

Lommerzheim ★ 4.2

Lommerzheim in Cologne-Deutz has served the city's most argued-over pork chop since 1959; cash only, closed Sundays, unchanged since Mick Jagger ate there.

Why locals love it: On the Deutz east bank away from the tourist centre; no concessions to comfort or modernity.