Crispy fish burger - Le Coup de Grâce

Ingredients

• 1/2 cup mayonnaise
• 2 tablespoons sweet relish
• 2 tablespoons capers, finely chopped
• 2 tablespoons French shallots, finely chopped
• 1 tablespoon fresh dill, finely chopped
• 1/2 tablespoon lemon juice
• 1 teaspoon Dijon mustard
• 8 slices prosciutto
• 1 cup Panko breadcrumbs, finely crushed with your hands
• 1/2 teaspoon Italian spices
• 2 large eggs
• 400 g haddock fillets, separated into 4 pieces
• Canola oil
• 4 brioche hamburger buns
• 4 thick slices of American cheese