Place chicken, olive oil, apple cider, apple cider vinegar, salt, pepper, thyme, rosemary, and garlic in a large plastic ziplock bag. Mix well and refrigerate for at least 4 hours or as long as overnight.
Preheat oven to 400F°.
Place the chicken and its marinade into a 9 x 13-inch dish. Nestle the cabbage and apples around the chicken.
Bake for 30 minutes and remove from oven. Turn the chicken and brush the mustard on top.
Bake until the chicken is cooked through and the apples are tender, about 35 minutes. Garnish with parsley.