Braised Italian Short Ribs

Ingredients

• 3 pounds beef short ribs
• 1 tablespoon olive oil
• 1/2 teaspoon salt
• 1/2 teaspoon black pepper
• 1 can (14 ounces) low sodium beef broth
• 6 garlic cloves, finely chopped (about 2 tablespoons)
• 3 sprigs fresh rosemary, each cut crosswise in half
• 2 bay leaves
• 2-1/2 cups dry red wine
• 1-1/2 pounds new potatoes (about 12 potatoes), each cut in half
• 1 package (8 ounces) white mushrooms, larger mushrooms cut in half
• 4 medium carrots, each cut diagonally into 2-inch pieces (about 2 cups)
• 2 medium celery ribs, each cut into 1-1/2-inch pieces (about 1-3/4 cups)
• 1 medium onion, cut in half and sliced (about 1 cup)
• 5 teaspoons all-purpose flour
• 1 tablespoon red wine vinegar