Clean the chicken breasts and butterfly; cut each in the middle (not all the way through but to look flat) or like a book. Flatten with a mallet or rolling pin. Season on both sides with salt and pepper then set aside.
In a big plate add flour, coat each flattens chicken, ensure you dust the excess off.
Reduce the heat to low and add milk, broth, parsley. Use a wooden spoon and scrape the teeny-weeny bits of chicken that stick to the pan then stir very well. Cook until the sauce begins to simmer.
Return the chicken, scoop some of the sauce over the chicken. Top the chicken with 2 slices of cheese and deli ham (I used turkey).
Cover and cook on low heat for about 3-5 minutes until the cheese melts.
Serve with the sauce.
Enjoy!