My GoTo Crockpot Corned Beef Easy Tender Irish

Ingredients

• 1 (3-4 pound) corned beef brisket, with pickling spice packet
• 1 tablespoon olive oil
• 1 medium yellow onion, chopped
• 4 cloves garlic, minced
• 4 cups low-sodium beef broth
• 1 cup dark beer, such as Guinness (optional)
• 1 bay leaf
• 1 teaspoon dried thyme
• 1 teaspoon black peppercorns
• 1 pound baby carrots
• 1 pound small red potatoes, quartered
• 1 medium head of green cabbage, cut into wedges