1. In a mixing bowl, combine crab meat, panko breadcrumbs, mayonnaise, Dijon mustard, Worcestershire sauce, Old Bay seasoning, beaten egg, and chopped parsley. Mix until well combined.
2. Form the mixture into 8 equal-sized patties.
3. Heat butter and olive oil in a frying pan over medium heat.
4. Cook the crab cakes for 3-4 minutes on each side, or until golden brown and crispy.