PREPARATION:
- Preheat oven to 350°F.
- To form pocket, cut each chicken breast horizontally almost to opposite edge. Fold back top half of chicken breast; sprinkle chicken lightly with salt and pepper. Place 1 slice prosciutto, 1 slice provolone and 1/4 cup spinach on each chicken breast. Fold top half of breasts over filling.
- Spread 3 tablespoons flour on plate. Holding chicken breast closed, coat with flour; shake off excess. Lightly sprinkle chicken with salt and pepper.
- Heat oil and butter in large skillet over medium heat. Place chicken in skillet; cook about 4 minutes on each side or until browned.
- Transfer chicken to shallow baking dish. (Do not wash skillet; reserve to make sauce.) Bake 10 minutes or until chicken is no longer pink in center and juices run clear.
- Whisk chicken broth and cream into remaining 1 tablespoon flour in small bowl. Pour chicken broth mixture into reserved skillet; heat over medium heat, stirring constantly, until sauce thickens, about 3 minutes. Spoon sauce onto serving plates; top with chicken breasts.
