Perfect Rump Roast

Ingredients

• red wine, divided
• tablespoons olive oil, divided
• tablespoons kosher salt
• teaspoons Italian seasoning
• teaspoon red wine vinegar
• teaspoon ground black pepper
• garlic salt
• rump roast
• tablespoon salted butter
• medium carrots, halved
• stalks celery, cut into large chunks
• vegetable broth
• large Spanish onion, chopped
• large bunch fresh parsley, chopped
• garlic, minced
• salt and ground black pepper to taste