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Slow Cooker Brisket with Braised Onions Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.6 from 14 reviews
  • Author: Hailey
  • Prep Time: 1 hour
  • Cook Time: 4 hours
  • Total Time: 5 hours
  • Yield: 10 servings
  • Category: Main Course
  • Method: Baking
  • Cuisine: American
  • Diet: Kosher

Description

A simple and comforting beef brisket recipe with richly braised onions and aromatic vegetables, perfect for a hearty family dinner. It features a flavorful sear on the brisket followed by slow oven cooking to tender perfection, enhanced with carrots, garlic, and tomato paste.


Ingredients

Scale

Brisket

  • 1 (6-pound) first-cut beef brisket
  • Kosher salt (about 3 tablespoons)
  • Freshly ground black pepper (to taste)
  • 1 to 2 tablespoons vegetable oil

Vegetables

  • 3 pounds yellow onions (about 8 medium), peeled and sliced 1/4 inch thick
  • 6 garlic cloves, peeled and smashed
  • 4 tablespoons tomato paste
  • 1 1/2 pounds thick carrots, peeled, trimmed, and cut into 1-inch chunks


Instructions

  1. Preheat the Oven: Heat your oven to 350°F (175°C) to prepare for slow roasting the brisket and vegetables.
  2. Prepare the Brisket: Trim excess fat from the brisket, leaving about 1/8 to 1/4 inch of fat. Season generously on both sides with kosher salt and freshly ground black pepper.
  3. Brown the Brisket: Heat a large Dutch oven over high heat with 1 to 2 tablespoons of vegetable oil until very hot. Place the brisket seasoned side down and cook until crusty and well-browned, about 5 to 7 minutes per side. If the brisket is too large, brown in halves. Transfer to a plate and set aside.
  4. Prepare the Onions: While the brisket browns, halve and peel the onions, then slice them into 1/4-inch thick pieces, using a food processor if available.
  5. Braise the Onions: Add the sliced onions to the emptied Dutch oven, seasoning them with salt and pepper. Cook over medium heat, stirring frequently, until the onions soften and turn a rich brown color, about 10 to 15 minutes. Add the smashed garlic and cook for an additional minute.
  6. Add Tomato Paste and Carrots: Stir in 4 tablespoons of tomato paste to the onions and garlic, cooking briefly to meld flavors. Then add the chunked carrots to the pot, mixing well with the onions and tomato paste.
  7. Combine and Roast: Nestle the browned brisket on top of the braised onions and carrots in the Dutch oven. Cover with a lid or foil.
  8. Oven Cook: Place the Dutch oven in the preheated oven and roast for 3 to 4 hours, or until the brisket is fork-tender and the vegetables are cooked through.
  9. Rest the Brisket: Ideally, allow the brisket to rest overnight in the cooking liquid to enhance flavor and tenderness before slicing and serving.

Notes

  • Use a 6.5-quart oval Dutch oven for best results; if unavailable, use a similarly sized heavy pot with a lid.
  • Season the brisket generously with salt before browning to develop a flavorful crust.
  • Slicing onions with a food processor’s slicing blade simplifies prep time.
  • The dish improves with an overnight rest, allowing flavors to meld and the brisket to become more tender.
  • If the brisket does not fit in the pan, brown it in halves and arrange in the pot accordingly.

Nutrition

  • Serving Size: 1 serving
  • Calories: 450 kcal
  • Sugar: 6 g
  • Sodium: 700 mg
  • Fat: 25 g
  • Saturated Fat: 9 g
  • Unsaturated Fat: 12 g
  • Trans Fat: 0 g
  • Carbohydrates: 18 g
  • Fiber: 3 g
  • Protein: 40 g
  • Cholesterol: 120 mg