The specialty at this old-fashioned, 1950s-style diner is the mallorca, a sweet pastry that's buttered, grilled, and then sprinkled with powdered sugar. Wash one down with a cup of café con leche. For something more substantial, try the breakfast mallorca, which has ham and cheese; the menu also includes pancakes, egg dishes, sandwiches, and comida criolla. The waitstaff—all dressed in black uniforms—are friendly and efficient and most have worked there for years. It gets packed on weekends with locals, who consider it an institution. You pay at the counter on your way out.
300 Calle San Francisco, San Juan, 00901, Puerto Rico