Calle Cuchilleros, is a beautiful old Madrid road next to the Plaza Mayor. It has lots of great underground mesones (inns), for when it's too cold to sit out on the terrazas.
The Meson de la Tortilla only has four things on the menu (tortilla, garlic mushrooms, cheese and ham) - order one of each and enjoy, occasionally with live music.
C/Cuchilleros, Leave the plaza mayor from the south-west corner.
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