The oldest restaurant officially certified by Guinness is the Spanish restaurant Bodin.

Restaurante Sobrino de Botin, known as the oldest restaurant in the world (founded in 1725), is a good place to eat roast suckling pigs near Plaza Mayol in Madrid, Spain, and one of the few impressive places in Madrid.

a sentence in the window of the restaurant makes this restaurant quite worthwhile: it is the oldest restaurant in the world that has been open since 1725, and the old stove used to roast suckling pigs began in the 18th century. Hemingway's signature was written on the window of the dining room.

In the novel The Sun Also Rises, Hemingway used Jack Barnes' mouth to sigh that Bodin Restaurant is one of the best restaurants in the world.

Spanish cuisine:

1. Paella

paella, also known as paella, is a classic dish in Valencia, Spain, with rich history, unique flavor and exquisite preparation methods. Papella originated in Valencia and can be traced back to the 15th century.

2. Halles

Halles has a wide variety of flavors, ranging from meat, cheese, seafood, vegetables to olives. These snacks are characterized by diversity and small portions, so that people can taste a variety of flavors without eating a lot.

3. Gaspar

Gaspar is characterized by freshness, health and rich vegetable flavor. It is a cold soup made of fresh vegetables, tomatoes, cucumbers, peppers, onions and garlic. Olive oil, bread crumbs, vinegar and some spices such as salt and pepper are usually added to taste.

above content reference: Baidu Encyclopedia-Spanish Bodin Restaurant