Ingredients:
- 2 lbs (900g) boneless lamb shoulder, cut into 1-inch cubes
- 1 tbsp olive oil
- 1 large onion, chopped
- 2 carrots, peeled and chopped
- 2 celery stalks, chopped
- 2 cloves garlic, minced
- 1 tbsp tomato paste
- 1 tbsp all-purpose flour (15ml)
- 1 bottle (11.2 oz / 330ml) Guinness stout
- 2 cups (475ml) beef broth (low sodium)
- 1 tbsp Worcestershire sauce (15ml)
- 1 tsp dried thyme (5ml)
- 1 bay leaf
- Salt and freshly ground black pepper to taste
- 1 cup (120g) frozen peas, thawed
- 3 lbs (1.36kg) Yukon Gold potatoes, peeled and quartered
- 1/2 cup (120ml) whole milk
- 4 tbsp (57g) unsalted butter
- 1/2 head green cabbage, finely shredded
- Salt and freshly ground black pepper to taste
- Pinch of ground nutmeg
Instructions:
- Season lamb with salt and pepper. Sear in batches in hot oil in the Dutch oven until browned on all sides. Remove lamb and set aside.
- Add onion, carrots, and celery to the Dutch oven and sauté until softened. Add garlic and tomato paste, cook for 1 minute.
- Sprinkle flour over the vegetables and cook for 1 minute. Pour in Guinness and scrape up any browned bits from the bottom of the pot.
- Add beef broth, Worcestershire sauce, thyme, and bay leaf. Return the lamb to the pot. Bring to a simmer, then cover and braise in a 325°F (160°C) oven for 2-2.5 hours, or until the lamb is very tender.
- While lamb braises, boil potatoes until tender. Drain and return to pot. Mash with milk and butter until smooth. Sauté shredded cabbage in a separate pan until tender. Fold cabbage into the mashed potatoes. Season with salt, pepper, and nutmeg.
- Remove bay leaf from the lamb. Stir in peas. Pour lamb mixture into the baking dish. Top with Colcannon, spreading evenly.
- Bake in a preheated 375°F (190°C) oven for 20-25 minutes, or until the topping is golden brown and the filling is bubbly.