The chicken cordon bleu recipe from the Food Network Kitchen is a good version of the dish. Chicken breasts are wrapped around smoked ham and cheese and coated with a bread crumb crust, then baked for 40 to 45 minutes.
To make chicken cordon bleu, melt 4 tablespoons of butter in a glass baking dish. Wrap 4 boneless, skinless chicken breasts in plastic wrap, and use a mallet to flatten them. Unwrap the breasts, and lay a thin slice of smoked ham and a chunk of Swiss cheese on each one. Fold the chicken breasts in half, and seal them using a toothpick.
Coat each piece of chicken in flour, dip it in a bowl of beaten eggs and then into a bowl of crushed bread crumbs. Place the chicken pieces in the baking dish, and turn them to coat each side with butter. Place the dish in an oven that has been preheated to 375 degrees Fahrenheit, and bake for 40 to 45 minutes or until the chicken looks golden brown and is cooked through. For a crispier finish, brown the chicken breasts in olive oil for a few minutes on the stovetop before putting them into the oven.