"It has not been easy being hidden on East 117th Street, but I am trying hard to spread the word," Nestor Leon revealed to me as soon as we sat down together. I could sense the intensity emanating from deep within Nestor as he spoke passionately about his "home country," and his strong desire to share the Mexican flavors, art, culture, spirits and wine with his guests.Nestor had worked in hospitality before coming to New York in 2001. He had a "big dream" to learn English, and chose to work in other restaurants before taking on the challenge of running his own. Because he was unable to return to Mexico for several years, in 2012, he decided that he needed to bring his personal experience to East Harlem. His brother had also opened a restaurant in Manhattan, but Nestor said that he really learned to cook from his mom. "I always loved food, and I liked experimenting and coming up with different combinations."The fare is authentic at El Kallejon, but as Nestor describes it, "with a twist." When I peeked inside the tiny kitchen area, I met Bertha Torres who grew up in a little village in Mexico. She also enjoys "putting interesting ingredients together," and watching the reaction of the customers. It was great fun standing there as Bertha cut and chopped preparing an outstanding guacamole, served in a cocktail glass with ceviche on top. Next up she quickly made a "tamalex" - a corn cake with cheese, roasted tomato sauce, and finished with some watercress. With very little space to maneuver, within minutes Bertha was presenting us with dish after dish. Everything was uncomplicated allowing the intensity of the chilies, garlic and their own infused olive oils to explode in each bite.While Bertha was busy in the kitchen, Nestor was making the drinks. As I sipped on the Hibiscus Flower that was made with a rose pedal infused tequila and lime, I was given a lesson about the difference between the restaurant's vast selection of artisanal mezcales and tequila, as well as the extensive Latin American wines.Everything at El Kallejon reflects a piece of Nestor's life in Mexico. The entire space is brightly painted with turquoise, orange, yellow and fuschia, and each piece of art and other decorations have a personal story. Even the bathroom is filled with memorabilia and history. I was particularly taken by an interesting looking instrument that Nestor explained was made from the jaw of a donkey.It was the middle of the winter when I visited, so it came as a great surprise when Nestor said that before I left, he had to show me something special. How fortunate he is to have a very colorful backyard garden, complete with a mural painted by his brother. In the warmer months, the food is grilled outdoors and there is live music. This restaurant is not just a business to Nestor, it was so clear to me that he has poured his heart and soul into it. "I have a positive attitude towards life, and I understand that owning a restaurant is difficult, but as long as you love it, you can survive - everything is possible."