The Friendly's signature dirty flat top burger is cooked on a well-seasoned griddle that imparts a distinctive crust and umami depth to the meat. The burger features a smashed patty with crispy, caramelized edges and a juicy center, topped with classic condiments and cheese that melts into the warm beef. The flat-top cooking method creates a textural contrast between the crunchy exterior and tender interior that sets it apart from flame-grilled versions. San Diego food publications have highlighted this burger as a standout example of griddle technique done right.