Chicken Cacciatore

Name: Chicken Cacciatore
Ingredients: 8 ounces cremini or button mushrooms wiped clean, stems trimmed and halved; 5 tablespoons olive oil; 2 tablespoons sherry vinegar; sea salt and black pepper to taste; 8 chicken thighs (about 2 1/2 pounds); 2 tablespoons chopped fresh marjoram; 1 small diced yellow onion; 2 garlic cloves; 1/2 cup dry white wine; 1 28-ounce can chopped tomatoes; 1 cup chicken broth; 2 tablespoons freshly chopped Italian parsley – plus more for garnish; Freshly grated Parmesan cheese for garnish