Ronald McDonald also made his debut that year in Washington, D.C., and the
Fillet - O -
Fish sandwich was introduced as the first new menu addition since the restaurant chain opened in 1948.
4 large slices white
sandwich bread, torn into 1 - inch pieces 2 tablespoons unsalted butter, melted 2 tablespoons fresh parsley, minced 1 small shallot, minced (about 2 tablespoons) 1/4 cup plus 5 tablespoons all - purpose flour 2 large eggs 3 tablespoons mayonnaise 1/2 teaspoon paprika 1/4 teaspoon cayenne pepper (optional) 1 1/4 pounds skinless cod, haddock or other thick white
fish fillet (1 to 1 1/2 inches thick), cut into 4 pieces Cooking spray Lemon wedges