Preparation Preheat oven to 450°F with rack in middle. Stir together panko, cayenne, 1/2 teaspoon salt, and 1/4 teaspoon pepper in a pie plate. Stir together butter, 1/2 teaspoon salt, and 1/4 teaspoon pepper in a small bowl, then brush all over chicken. Add chicken, 2 pieces at a time, to crumb mixture and coat evenly on both sides, pressing chicken into crumbs to help them adhere, then transfer, skin side up, to a shallow baking pan. Bake chicken until well browned and cooked through, 30 to 40 minutes. Let stand, uncovered, 5 to 10 minutes to crisp.
Preparation Preheat oven to 450°F with rack in middle. Stir together panko, cayenne, 1/2 teaspoon salt, and 1/4 teaspoon pepper in a pie plate. Stir together butter, 1/2 teaspoon salt, and 1/4 teaspoon pepper in a small bowl, then brush all over chicken. Add chicken, 2 pieces at a time, to crumb mixture and coat evenly on both sides, pressing chicken into crumbs to help them adhere, then transfer, skin side up, to a shallow baking pan. Bake chicken until well browned and cooked through, 30 to 40 minutes. Let stand, uncovered, 5 to 10 minutes to crisp.