Heat butter in a medium skillet over medium-high heat. Add onion and pepper and sauté for 4 – 5 minutes. Make sure that fish has been patted dry thoroughly with paper towels. In a large bowl, add cilantro, fish, pepper flakes, garlic and cooled onion/pepper from pan. Dust shrimp thoroughly with flour. Sprinkle remaining flour, breadcrumbs salt, pepper and Old Bay Seasoning over while tossing, making sure to coat fish evenly. Fold in mayonnaise and egg whites. Take some of the mixture and form into a ball, about 3 inches in diameter. If it holds together, you’re in business. If it’s too dry and flaky, add some more breadcrumbs. It should be moist, but not soggy. Form mixture into 8 equal sized patties. Hold shrimp flat and build the fish cake around the shrimp. The idea is to have a normal looking fish cake with a shrimp tail sticking out of the side.

Add enough oil to just cover the bottom of a large skillet and heat over medium heat. When oil is hot, add cakes and cook until medium brown on one side, about 5 - 6 minutes. Carefully flip over and brown other sides, about 5 minutes more. When cakes are just cooked, remove from pan and top with your favorite sauce.