WHERE TO EAT The best Bocadillos in the world (according to food experts)

"La Xampanyería is a Barcelona institution and a MUST do for anyone that visits Barna. Get the Serrano, Queso, Cebolla y Pimientos bocadillo to start off your night."

"The calamari sandwich (bocata de calamares) from El Brillante is, without a doubt, a fundamental Madrid classic. In terms of the ‘bocata,’ which is really what we came for, its pure simplicity should be noted. Just two slices of bread and some fried squid in the middle has earned itself a place of honor in the aristocracy of Spanish fried food."

"The squid bocadillos are the specialty of this brewery located a few steps from the Plaza Mayor. The place has been open since 1870, being formerly a winery called Bodegas Sierra. And it is from this date since when they start selling this famous three-generation sandwich from Madrid."

"The 10 Best Bocadillos de Calamares in Madrid: Casa Rua - We like it for its generous content, the crunchiness of its bread and the absence of extra oil, and always freshly made."

"The soft tortilla centre coupled with the crunchy texture of the baguette… it is a match made in heaven, and I will never go back to ever thinking that a tortilla was bland and tasteless as they usually are in London. The Basque people have changed my mind."

"The Ten Bests Bocatas de Calamares in Madrid: Bar Postas - Bar Postas is located in the heart of Madrid, is known not only for its bocadillo de calamaris but also for its traditional bocadillos, with all kinds of ingredients."

"They have a wide range of sandwiches , such as the “Elena” which consists of an omelette, cheese, bacon and garlic oil, among others. So you know, you mustn’t leave Valencia without tasting an authentic esmorzar."

"In Valencia, the second breakfast (called almuerzo in Valencia) is taken very seriously. Cyra and I enjoyed almuerzos all around town, but one of the best things I tasted was a delicious blood sausage (morcilla), scrambled egg, and pickled onion sandwich at Bar Central in the Valencia Central Market."

"The only thing that may seem short is its menu, as it only serves sandwiches of a good variety of cold meats. However, its specialization has meant the quality, everything you can eat is excellent. Recommendations? El bocadillo el salchichón de ciervo."

"For cheap eats Madrid style, you should head to Bocadillos Oink. This shop is a perfect place for lunch or snack time. They are a takeaway food store, specializing in ham rolls. In addition, the rolls and fillings are made fresh and their service is really efficient."