Dear Culinary Backstreets, I’m traveling to Barcelona and I love visiting food markets. I’ve heard a lot about La Boquería, but are there any other markets that might be worth visiting?

De toda la vida is a Spanish expression that basically means “It’s been around forever,” and it’s a sure thing that the locals in Barcelona’s Gràcia neighborhood will utter those words if you ask them about Bodega Quimet. Opened in the 1950s by the Quimet family, the bodega (not to be confused with Quimet i Quimet, a popular Barcelona tapas bar) was passed down from father to son until 2010, when the younger (but nonetheless old) Quimet retired and brothers Carlos and David Montero bought the venue. David Montero had always worked as a cook and dreamed of owning his own place. However, after buying Quimet, instead of doing the renovations so typical of Barcelona bars that change hands (such as modernizing the furnishings or installing a huge flat-screen TV for showing fútbol matches), the Montero brothers made the somewhat unusual decision to keep everything, from the low prices to the décor, pretty much the same as it always had been.

As the legend goes, a 19th-century Catalan farmer was out experimenting in his fields when he came up with a new kind of longer, juicier green onion, the calçot. In creating the onion, the farmer produced much more than a new vegetable; he also paved the way for the rise of an idiosyncratic, and distinctly Catalan, cultural event.

A hidden culinary sanctuary, El Passadís del Pep may be located in one of the most visited quarters of Barcelona, but it’s out of sight of anyone who isn’t looking for it. Once you go down the long corridor that leads to the restaurant, you don’t need to do anything, and that includes choosing what to eat. From the moment you sit down, the “house” offers you your first bottle of cava, and the celebration of food and life begins. There is no menu and there are no “daily specials,” just whatever Joan Manubens and his team decide to cook that day. The restaurant, whose name means “Pep’s Corridor,” specializes in cocina de mercado, or market cuisine, prepared in a simple, traditional Mediterranean style. As if in a ballet, the show begins when the waiters start to dance around you and the food arrives at the table in a continuous flow of abundance: Iberian cured ham, anchovies, typical Catalan bread rubbed with tomato; sautéed baby squid with rice and garlic; choice shellfish such as cañaíllas (a kind of sea snail) prepared in such a delicate way that all the natural flavor is retained; velvet crabs or spider crabs cooked without any ingredient that could detract from their natural essence.

Editor’s note: This is the penultimate installment of “Best Bites of 2012,” a roundup of our top culinary experiences over the last year. Stay tuned for our final “Best Bites” dispatch, from Istanbul, tomorrow. Restaurant Roma We hadn’t planned on bringing in La Nochevieja at Restaurant Roma, but it was nearby and we didn’t feel up for public-transport adventures on New Year’s Eve. Situated on a quiet street in the upscale but untouristy Barcelona neighborhood of Sant Gervasi, Roma is thoroughly nondescript – a neighborhood joint frequented by neighborhood people of a certain age. The wood-paneled walls, racks of Maxim magazines and TV mounted in the corner kept our expectations pretty low.

Dear Culinary Backstreets, I’ll be in Spain during the December holidays and I’m wondering if Barcelonans eat any special meal on Christmas? If so, what is it and where in the city could I try it?

Mushroom hunting has an irresistible, magical pull. Composer John Cage, an avid mushroom collector, found them an integral part of his creative process, once writing: “Much can be learned about music by devoting oneself to the mushroom.” Every fall, thousands of Catalans likewise find themselves under the mushroom’s spell, following the elusive fungus’s silent melody into the woods, a rustic wicker basket in one hand and – more and more these days – a GPS-enabled smartphone in the other.

Through the Daily Beast, we’ve just been introduced to the literary character Pepe Carvalho, Barcelona’s “gastronome private eye.

Be it kvass in Russia or boza in Turkey, every nation seems to have one of their own, a locally loved drink that to most outsiders comes off as a particularly strange brew. In Spain, that drink is horchata, a unique and deliciously refreshing concoction made from chufas (tigernuts), water and sugar. Served chilled, horchata is beloved all over the peninsula.

Viena is the love child of an Austrian ski lodge and a McDonald’s. This Catalan fast-food joint – which has become an obligatory foodie stop thanks to New York Times food writer Mark Bittman, who famously wrote that Viena’s flauta de jamón ibérico was the best sandwich he’d ever had – dishes up fast and delicious grub with a side of kitsch.

While even glass-half-full types are calling Spain’s economic forecast gray, the food climate in the Catalan capital couldn’t be sunnier. With packed tables, new venues such as Tickets and 41˚, and Spain’s hottest restaurant, Can Roca (recently voted #2 in the world) just a stone’s throw away in Girona, Barcelona’s restaurant scene provides an elixir guaranteed to cure the eurozone’s worst economic hangovers. Interviewed recently on Spanish national television, legendary chef Ferran Adrià was asked by radio journalist Luis del Olmo, ¿Cómo se cocina la crisis? (How does one cook the crisis?) Adrià answered, “With innovation and taking risks.”