Madrid, Spain
Madrid's definitive winter offal stew — tripe, trotters, snout, morcilla, chorizo, jamón, chickpeas, and a rich spiced tomato sauce, cooked for 3-4 hours until the tripe is silky and the sauce is thick and deeply flavoured. Callos is the dish that defines the taberna culture of Madrid — served on cold days in small terracotta dishes, accompanied by crusty bread, and completely inappropriate for anyone who thinks tripe should be avoided. The morcilla used in Madrid is morcilla de Burgos — rice and blood sausage — which dissolves partially into the sauce and thickens it. This is not an improvised element; it is the technique that gives madrileño callos its characteristic richness.
Prepare the tripe: blanch, clean, and cut into 4-5cm pieces. Start the tripe and trotters in cold water with aromatics and cook for 2 hours until tender. Prepare the tomato-chorizo-pimentón sofrito separately. Combine and continue cooking 1-2 hours. Add the morcilla in the last 30 minutes — it should partially dissolve into the sauce. Season only at the very end.
The best callos a la madrileña is always better the next day after reheating — the sauce deepens and the tripe absorbs more flavour. The classic accompaniment is crusty Madrid bread and a glass of light Tempranillo or Mencía. Some madrileño tabernas have been serving callos continuously since the 19th century — Casa Revuelta in the La Latina neighbourhood is a benchmark.
Under-cleaning the tripe — it retains off-flavours. Not pre-cooking before the final stew — tough, rubbery tripe results. Skipping the morcilla — the sauce won't have the characteristic body. Over-salting — the cured meats release significant salt.
The Food of Spain by Claudia Roden