Visiting Madrid while on vacation, I had an afternoon talking bread with Javier Marca. He suggested trying some tortilla Espagnola at what's known as a "cerveceria," a style of tavern and bistro common in Spain.  Bodega de la Ardosa is cramped, smells of beer, and full of charm within a small space of little stools and tables.

We managed a fantastic plate of croqueta de cabrales (croquets) and a beer before deciding it would be better to return the next day, early before the crowds. We weren't disappointed.