Cut a horizontal slice in the middle of each chicken breast without cutting all the way through
Place chicken in a baking dish
Add olive oil, salt and pepper and marjoram
Marinate for about an hour in the refrigerator
Remove from marinade and grill over charcoal or gas grill slit side down first
When chicken is done place some cheese in each slit and continue to grill until cheese melts
Serve with Pico de Gallo over chicken
This recipe is so good
You will love the subtle flavor of the marjoram