Homemade Chicken Stock

INGREDIENTS

• 1 whole chicken carcass
• 2 tablespoons olive oil
• 2 large onions, roughly chopped
• 3 carrots, roughly chopped
• 2 ribs celery, chopped
• 2 whole cloves garlic, peeled and minced
• 4 sprigs fresh thyme
• handful fresh parsley stems
• 2 bay leaves
• 1 teaspoon dried rosemary
• 1 teaspoon paprika
• 1/2 tablespoon whole peppercorns
• 1 teaspoon salt, or to taste
• 1/2 cup Madeira wine
• 1 gallon (16 cups) cold water