Pour your italian dressing into a big resealable plastic bag. Make sure it’s large enough for all six of your chicken breasts before placing them inside.
Once your chicken breasts are sealed into the bag, shake to make sure the dressing coats each cut of meat.
Place your bag in your refrigerator for at least 1 hour. For best results, leave it there overnight.
When you’re ready to enjoy your chicken, preheat your oven to 350 F.
Remove your marinated chicken from the bag and place it in a lightly greased 9×13 inch baking dish.
Bake for 1 hour, or until chicken is cooked through and juices run clear. Be sure to turn each cut of meat over once during the hour of cooking to ensure even distribution of heat.
Best served with some buttery roasted potatoes and garnished with parsley.