PERFECT RUMP ROAST

Steps:

• Whisk 1/4 cup wine, 3 tablespoons olive oil, kosher salt, Italian seasoning, vinegar, 1/2 teaspoon black pepper, and garlic salt together in a bowl and pour into a resealable plastic bag. Add rump roast, coat with the marinade, squeeze out excess air, and seal the bag. Marinate in the refrigerator for 8 hours to overnight.
• Remove roast from the refrigerator. Melt butter in a large skillet over medium-high heat. Sear roast in hot skillet, turning to brown all sides, about 10 minutes.
• Place roast in a slow cooker with vegetable broth, remaining 1/2 cup red wine, onion, parsley, carrots, celery, remaining 4 tablespoons olive oil, garlic, salt, and pepper. Cover and cook on Low heat until roast is fall-apart tender, 9 to 10 hours. An instant-read thermometer inserted into the center should read at least 145 degrees F (63 degrees C).