Tommy Moloney's Corned Beef and Cabbage

Ingredients

• 5 pounds Tommy Moloney’s Corned Beef
• 5 garlic cloves, slightly smashed
• 10 peppercorns
• 4 sprigs fresh thyme
• 2 bay leaves
• 12 ounces stout (Irish stout is highly recommended)
• 1 cup beef broth or stock
• Water (for simmering)
• 4 yellow onions, cut into wedges, plus 1 medium yellow or sweet onion, sliced
• 2 parsnips, peeled and cut into large chunks
• 3 carrots, peeled and cut into large chunks
• 6 medium red potatoes
• 1 medium head green cabbage, cut into quarters, core removed
• 4 tablespoons butter