01 - In a medium bowl, gently combine the crab meat, bell pepper, celery, scallions, and parsley.
02 - In a separate bowl, whisk together the egg, mayonnaise, Dijon mustard, Cajun seasoning, Worcestershire sauce, and hot sauce until smooth.
03 - Add the wet mixture to the crab mixture and gently fold until just combined. Stir in 1/2 cup of panko breadcrumbs. Season with salt and pepper to taste.
04 - Divide the mixture into 8 equal portions and shape into patties approximately 3 inches in diameter.
05 - Place the remaining 1/2 cup panko breadcrumbs on a plate. Coat each crab cake lightly on both sides, pressing gently to adhere.
06 - Cover and refrigerate the crab cakes for at least 20 minutes to help them set and maintain shape during cooking.
07 - In a small bowl, whisk together mayonnaise, Dijon mustard, horseradish, capers, dill pickles, lemon juice, smoked paprika, and cayenne pepper until smooth. Refrigerate until ready to serve.
08 - Heat butter and oil in a large skillet over medium heat. Once hot, add crab cakes in batches without overcrowding. Cook for 3-4 minutes per side until golden brown and heated through.
09 - Transfer cooked crab cakes to a paper towel-lined plate to drain excess oil. Serve warm with remoulade sauce on the side.