According to the recipe on kitchenlink.com
The ingredients for the cheese stuffing, which is the most important part. It's a combination of cream cheese and Hidden Valley Ranch dressing. Made with an 8 oz. package of cream cheese and a package of dry ranch mix. Cut a pocket in the chicken breast, stuff with cheese filling. Then bread the chicken with cracker crumbs, brown in oil, and bake for approximately 40 mins.