Mix crushed crackers, mayonnaise, Dijon, seafood seasoning, Worcestershire sauce, egg, cayenne, and salt together in a large bowl.
Add crabmeat and stir until combined but still chunky.
Cover and refrigerate for 1 hour.
Sprinkle bread crumbs onto a plate.
Shape chilled crab mixture into four small, thick patties.
Coat patties completely with bread crumbs.
Melt butter in a skillet over medium heat.
Add crab cakes and cook until golden brown, about 4 minutes per side.
