Juicy How to Cook Corned Beef: My Slow Cooker Secret!

Ingredients

• 1 (3-4 pound) corned beef brisket, with spice packet (1.4-1.8 kg)
• 1 large yellow onion, quartered (approx. 200g)
• 3 carrots, peeled and roughly chopped (approx. 250g)
• 3 celery stalks, roughly chopped (approx. 150g)
• 4 cloves garlic, smashed
• 8 cups low-sodium beef broth (1.9 liters)
• 2 bay leaves
• 1 teaspoon dried thyme
• 1/2 teaspoon black peppercorns
• 1/4 cup apple cider vinegar (60 ml)
• 2 tablespoons Dijon mustard (30 ml)
• 2 tablespoons brown sugar (30g)
• 1 tablespoon apple cider vinegar (15ml)