Mayfair Diner 
7373 Frankford Avenue
Philadelphia, PA 19136
215-624-4455

Crab cakes and deviled crab top the list of popular dishes on the menu at this Taj Mahal of American diners that serves such German foods as sauerkraut and Dutch meatballs and traditional American dishes that include meat loaf with mashed potatoes and gravy. They are open 24 hours a day and breakfast is served all day.