Churros, the long, skinny, crenellated, sweet fried crullers made from just flour, water and salt, have been enjoyed for centuries in Spain, with hot chocolate and without. However, in Barcelona, xurros, as they are called in Catalan, are becoming an endangered species. In recent years, more than half of the xurrerias in the city have disappeared. Many of the old-timer xurreros who still survive have the odds stacked against them: permit renewal for a street stall is near impossible; rent has become prohibitively expensive and continues to increase; or required updates to old infrastructure might prove extremely costly. However, we know of one young newcomer who has emerged with fresh energy and inspiration, incorporating lessons from the masters in his creative take on xurros. The best way to save this endangered species is to eat it, so here are our five favorite xurrerias, which make these star-shaped doughnuts with great care – and with delicious results that are worth seeking out.

Editor's note: For our last stop on CB's Global Bar Crawl this week, we're pulling up a stool at our favorite mezcal bars in Mexico City, kicking back and savoring every last drop. Para todo mal, mezcal. Para todo bien, también. Y si no tiene remedio, tómate litro y medio. For everything bad, mezcal. For everything good, the same. And if that doesn’t help, drink a liter and a half. – Popular saying among mezcal lovers.

“I’m not a missionary, but I am not doing this just to make a profit. People must see that there is mantı outside of Kayseri, there’s Crimean Tatar mantı, as well,” explained Gülben Resuloğlu, in front of her restaurant in the leafy Feneryolu district of Istanbul’s Asian Side.If Martha Stewart were in the mantı (also known as “Turkish ravioli”) business, her place would look just like Gülbi’s – meticulously decorated in pastels, white and floral prints. Everything matched, even the two neatly dressed women who welcomed us: Gülben (the Gülbi in question) and her sister, Leyla. But kept just behind tidy appearances, we discovered, is the pain of being Tatar. We’re convinced that this identity, which was forged in the fire of dispersal and diaspora, made the food taste better.

Editor’s note: This post is the fourth installment of “Best Bites of 2013,” a roundup of our top culinary experiences over the last year. Stay tuned for “Best Bites” from all of the cities Culinary Backstreets covers. Hilaria Gastrobar We visited this restaurant on revitalized Madero Street downtown just a few months after it opened, and we were immediately won over by the food and beer selection.

Dear Culinary Backstreets, My husband and I are headed to Rio for vacation and neither of us eats meat or fish. Brazil sounds like a paradise for the carnivorous, but what’s a vegetarian to do?

Making mixiote takes some effort. On its home turf in Central Mexico, the dish is made by taking chicken, beef or mutton that is seasoned with pasilla and guajillo chili peppers as well as flavorings like thyme, cumin, bay leaves, oregano, onion and garlic, wrapping it in individual portions in maguey leaves and then slow-cooking the bundle in a pit, preferably overnight. But how about in Mexico City, a crowded metropolis where it’s not always possible to build a BBQ pit in the ground, or to obtain maguey leaves, which are both expensive and difficult to work with?

Dear Culinary Backstreets, I keep hearing about the wonders of Cretan cuisine, but is it really any different from regular Greek cooking? And is there anywhere nice to try it in Athens?

Editor’s note: This is the second piece in our series featuring the hidden gems in some of Athens’ most touristy neighborhoods. We previously explored Psyri; it is now time to take on the holy grail of Athenian tourism: Plaka. There’s a reason why this area of old Athens, just below the Acropolis, is the city’s most touristy neighborhood: it has a history of more than 6,000 years.

In Mexican cuisine, sweets are for the most part simple treats that are enjoyed at the park, market or beach, such as caramelized fruits and vegetables, blocks of nuts or amaranth seeds held together with honey, or small rice paper cakes filled with honey. The common denominator of most of these sweets is their simplicity. When it comes to ice cream and other frozen delights, however, the country truly shines, with an astounding variety of cold treats to please sweet tooths of every persuasion.

Editor’s note: This feature from Barcelona is the third installment in our series this week devoted to the top street foods in each of the Culinary Backstreets cities. In Barcelona, a great deal of eating is done in the streets. Sidewalk cafés line the plazas and paseos, often to the point that it’s difficult to tell which tables belong to which establishment.

Once a mostly beer-free country, Spain – traditionally a land of wine drinkers – has recently started to develop a taste for the sudsy beverage, and Catalonians seem to have been the main pioneers behind this growing trend. The number of local craft breweries is increasing and so is the number of beer fans, who are also learning how to brew the drink at home. Put it all together and you have a young and adventurous market that is ready to experiment with tastes and textures to create stellar new beers with a distinct Mediterranean flavor.

One of our favorite markets in Mexico City, Mercado Jamaica is a fantastic destination any time of the year, offering everything from festive Christmas decorations to a large selection of fruits and vegetables. After the markets of Xochimilco, Jamaica is also one of the city’s best flower markets, with block-long aisles filled with freshly cut flowers and plants of almost every imaginable color and type. But as much as we love getting lost in the sweet scents of these green alleyways, what keeps us coming back to Jamaica is El Profe, an excellent eatery inside the market that specializes in barbacoa. El Profe ("The Prof") looks less like your typical market food stand and more like a mini restaurant, with small brass chandeliers hanging from the ceiling that provide more in the way of ambiance than actual light. Waiters and cooks in matching blue uniforms hustle and bustle around the customers, who come and go from the counter at a steady pace.

For as long as I can remember, I have loved mornings, a preference that likely – perhaps counterintuitively – originates from my experience working bright and early at my parents’ fonda. Almost every day, we would arrive around 7 a.m. to prepare the day’s menu, slicing vegetables for salsas, putting together moles, boiling chicken and arranging everything necessary for the daily rush of customers. The warmth and aromas rising from the large clay pots filled the air and never failed to make my mouth water. It was a scene that had been repeating itself since my grandfather bought our fonda back in the early 1960s.

Dear Culinary Backstreets, Both my husband and I are vegetarian and we are planning a trip to Athens. We’ve heard that Athens doesn’t have a lot of choices for vegetarians and are a bit worried. Will it be possible for us to eat some of that lovely Greek food? What kind of traditional vegetarian dishes would you suggest we try?

The past year has been a very good one for food in Mexico City. We’ve had a wonderful time exploring new restaurants, tracking down exciting dishes and meeting great people along the way. There have been so many memorable moments over the past year that it was hard to sit down and come up with a list of the ones that really stood out the most. Through debate and discussion (and some revisits), we narrowed down the worthy field to our top favorites. Here are our Best Bites of 2012 from Mexico City. El Pozole de Moctezuma First up on our best food experiences of the year would have to be the pozole at El Pozole de Moctezuma. Located near Metro Garibaldi, the building is nondescript and shows no sign of the deliciousness that lies within, so if we hadn’t been taken there by a friend, we never would have known about it. But what a discovery! The friendly staff showed us exactly how to build the perfect bowl of pozole, from choosing the color and flavor of the broth to adding oregano, chili powder, lime juice and, of course, a splash of mezcal. A bowl of soup never tasted so good or filled us up more satisfyingly than that at El Pozole de Moctezuma. Best of all, the place is a long-term neighborhood fixture that celebrated its 65th anniversary in 2012, a fact that bodes well for future visits.