Best Braised Corned Beef Brisket

This braised corned beef brisket transforms a classic dish into something incredibly rich, tender, and deeply flavorful. Instead of simmering the brisket in water, this method begins by searing the meat to build a savory crust before slowly roasting it in the oven with onions and garlic.

The long braising time allows the brisket to become unbelievably juicy and fork-tender while soaking up all the aromatic flavors.

The result is a hearty roast that feels special enough for holidays yet simple enough to make anytime you crave comforting, slow-cooked beef.

The onions and garlic caramelize gently as the brisket cooks, creating a fragrant base that pairs perfectly with traditional sides like cabbage, potatoes, carrots, or buttery colcannon. Once you try this slow-braised version, it may become your go-to way to cook corned beef all year long.

Prep Time: 15 mins
Cook Time: 6 hrs 15 mins
Total Time: 6 hrs 30 mins
Servings: 6

Ingredients

  • 1 (5-pound) flat-cut corned beef brisket
  • 1 tablespoon browning sauce (such as Kitchen Bouquet), or to taste
  • 1 tablespoon vegetable oil
  • 1 large onion, thinly sliced
  • 6 cloves garlic, thinly sliced
  • 2 tablespoons water

Directions

  1. Preheat the oven to 275°F (135°C).
  2. Remove and discard the seasoning packet that comes with the corned beef brisket. Brush the brisket evenly on both sides with browning sauce.
  3. Heat vegetable oil in a large skillet over medium-high heat. Sear the brisket until deeply browned, about 5 to 8 minutes per side.
  4. Transfer the browned brisket to a rack set inside a roasting pan. Scatter the sliced onions and garlic evenly over the top of the meat. Pour the water into the bottom of the roasting pan.
  5. Cover the pan tightly with aluminum foil to seal in the moisture.
  6. Roast in the preheated oven for about 6 hours, or until the brisket is extremely tender and easily sliced.
  7. Slice the brisket across the grain and serve hot with your favorite sides.