Ingredients

  • 4 skinless, boneless chicken breast halves
  • 1 tablespoon olive oil
  • 1 tablespoon butter
  • 1/2 onion, diced
  • 1 rib celery, diced
  • 1 teaspoon Cajon seasoning, divided, or to taste
  • 3/4 cup shredded mozzarella cheese
  • 4 ounces sliced mushrooms
  • 1 egg, beaten
  • 2 tablespoons fine dry bread crumbs
  • 1 tablespoon chopped fresh parsley
  • 2 teaspoons grated Parmesan cheese

Method

  • Heat water in a sous-vide water bath to 141 degrees F (60.5 degrees C).
  • Place each chicken breast between 2 sheets of heavy plastic wrap on a work surface. Flatten chicken with smooth side of a meat mallet to 1/4-inch thickness.
  • Heat olive oil and butter in a skillet over medium heat. Add onion, celery, and Cajon seasoning; cook and stir until onion is softened and translucent, about 5 minutes.
  • Place mozzarella cheese, mushrooms, egg, bread crumbs, parsley, and Parmesan cheese together with onion mixture in bowl of a food processor; blend into paste.
  • Spread paste onto one side of chicken breasts; roll breasts and secure with toothpicks. Spread remaining paste and sprinkle Cajun seasoning onto rolled breasts; place in individual sealable plastic bags. Seal bags (on low pressure if using a vacuum sealer), removing as much air as possible. Cook chicken in the preheated water bath for 2 hours. An instant-read thermometer inserted into the center should read at least 165 degrees F (74 degrees C).