Onion-Braised Beef Brisket | America's Test Kitchen

Ingredients

• 1 beef brisket , 4 to 5 pounds, flat cut preferred
• Salt and ground black pepper
• vegetable oil
• 3 large onions (about 2 1/2 pounds), halved and sliced 1/2 inch thick
• 1 tablespoon brown sugar
• 3 medium cloves garlic , minced or pressed through garlic press (about 1 tablespoon)
• 1 tablespoon tomato paste
• 1 tablespoon paprika
• 1/8 teaspoon cayenne pepper
• 2 tablespoons all-purpose flour
• 1 cup low-sodium chicken broth
• 1 cup dry red wine
• 3 bay leaves
• 3 sprigs fresh thyme
• 2 teaspoons cider vinegar (to season sauce before serving)