A country of strong regions more than a single kitchen — Atlantic seafood in the north, roasts and pulses on the high plateau, rice on the east coast and cold soups and frying in the south — held together by olive oil, pork and the habit of eating out in company.
The Romans planted olives, vines and wheat across Hispania, and oil and wine have been the base of the cooking ever since. For much of the Middle Ages the south and east were al-Andalus, and the centuries of Muslim rule are usually credited with bringing rice, saffron, sugar cane, citrus, aubergines and almonds into common use — along with the taste for pounding things in a mortar.
After 1492, Spain's empire in the Americas — built on conquest — sent back tomatoes, peppers, potatoes, beans and chocolate. Over the following centuries they changed the cooking completely: peppers dried and ground into pimentón, tomatoes into the sofrito and the red gazpacho, potatoes into the tortilla.
Mountains, climate and old kingdoms kept the regions apart, and several have their own languages as well as their own kitchens. Most Spaniards would name their cooking by its region first — Galician, Basque, Catalan, Andalusian — and the country's dishes are argued over town by town.