Does the perfect burger exist? La Birra Bar certainly comes close. Cofounders and family members Daniel, Roxana, and Renzo Cocchia will tell you La Birra Bar was conceived as an extension of Daniel's parents' rotisserie deli in Buenos Aires. Today, fans of the brand call it "the temple," a nod to La Birra's myriad menu options and the family's admitted obsession with the "perfect burger." The latter starts with the patty, a proprietary blend that's hand-chopped from various cuts of beef. Next, the bun: hand-kneaded and baked fresh daily for a light and fluffy texture. And the toppings, everything made from scratch — pickles, crispy onion, sauces, you name it. Keep it simple with the "Clásica," a six-ounce patty topped with Emmental cheese, lettuce, and the house tomato-based secret sauce. Go savory with the "Umami," topped with aioli, spicy ketchup, confit tomatoes, and Milanese mozzarella. Or test your endurance with the massive "Burger 532," alternating layers of beef, cheddar, and bacon stacked five patties high that arrives like a teetering Jenga tower of meat and cheese.