In a town that runs on tacos, tacos de guisado may be the most ubiquitous version of the iconic dish in Mexico City. They can be found almost anywhere in the city, from specialty restaurants to markets, tianguis and street vendors selling them at stalls or even out of the trunk of a car. It may be an obvious point, but what distinguishes some tacos de guisado from others is how well prepared the guisados (home-style cooked meats or vegetables typically displayed and kept warm in earthenware dishes called cazuelas) are – and sometimes those coming out of the back of a car top ones from more “established” places. With so many places to choose from, how to determine who makes the best tacos de guisado in town? One contender we had long heard about is Beatricita, a brick-and-mortar taquería in the Zona Rosa that has quietly been using the same recipes to great acclaim for almost 110 years – certainly strong evidence that its guisados could be some of the best in the city.

Initially, it was books that led Fernando Rodriguez Delgado to his interest in cacao. Today Rodriguez runs Chocolate Macondo, a café that specializes in ancient preparations of cacao, but prior to that he was a bookseller, fanatical about reading and fascinated by the history of Mexico. The day that he came across the Florentine Codex, a 16th-century manuscript documenting Mesoamerican culture, was an important one: it would eventually spark his countrywide search to discover the traditions of cacao and seek out ingredients, the names of which he only knew in Nahuatl. Rodriguez didn’t speak this native language of Mexico, so trying to work out the recipes for cacao drinks he found in the codex was no easy task.

With a simple façade, the unassuming Fonda Margarita sits next to a carwash and wouldn’t attract much attention if it weren’t for the line out the door and around the block by the time it opens at 5:30 a.m. Construction workers come at the crack of dawn, office workers arrive in shifts and sleepy teenagers meander in just before they close at 11 a.m. “We’re traditional,” says owner Richard Castillo when we ask him why his restaurant, which only serves breakfast, is so popular, “and there aren’t many traditional places left in Mexico City. We still cook using clay pots and 100 percent coal-fired grills.”

Visiting establishments with a lot of history always warms the cockles of our heart – even more so when that establishment is the oldest surviving cantina in the city. El Dux de Venecia didn’t start out as a cantina, but it became a drinking establishment in Azcapotzalco – a farming community that became part of Mexico City in the 1940s – during the Mexican revolution and has remained an important part of the neighborhood ever since. The story goes that an Italian traveler decided to open a grocery store at the end of the 19th century. He named it El Dux de Venecia (The Doges of Venice) because he was originally from that Italian city. He offered all kinds of imported products from Europe as well as local ones, including deli meats, bread and alcohol. Because some customers consumed these items in the shop, the owner installed chairs and tables for their comfort.

It is not hubris to say you have the best tortas (Mexican sandwich) in town when you have been serving them for more than 80 years. Take Tortas La Texcocana, which has been serving the delicious sandwiches in Mexico City since the early 1930s – their longevity suggests an unsurpassable skill for sandwich-making. The business was founded by León Sánchez, a Texcoco native, in downtown Mexico City. He started selling sardine tortas to newspaper workers on the street. In 1936, he established a small shop that sold various items, his famous tortas among them. Tortas La Texcocana is in the same venue where Sánchez set up his shop many decades ago.

In our recent explorations of Mexico City’s Azcapotzalco neighborhood, we were taken to a taquería that was going to “blow our minds,” according to our host. After having some drinks at El Dux de Venecia, the oldest surviving cantina in the city, we headed around the corner to Los Parados de Pepe for a visit.

In Mexico, small business owners and entrepreneurs often display high levels of ingenuity. Take the case of El Vilsito, a taquería in the Narvarte neighborhood that does double duty as an auto repair shop.

Mexican sweets might not be as world-famous as those from the U.S., France or Switzerland, but judging by the enormous variety of pastry, candy and chocolate made and consumed domestically, Mexicans have an insatiable sweet tooth. And chocolate, of course, is one of Mexico’s gifts to the world.