Ingredients:

  • 3 lbs Potatoes (e.g., Russet, Maris Piper, or King Edward), peeled and roughly chopped
  • 4 Tbsp Unsalted Butter, cubed
  • 1/2 cup Whole Milk or Heavy Cream, warmed
  • 1/2 cup Aged Sharp Cheddar Cheese, grated, plus extra for sprinkling
  • Fine Sea Salt, To taste
  • Black Pepper, To taste
  • 2 Tbsp Olive Oil or Vegetable Oil
  • 5 lbs Lamb Mince (ground lamb)
  • 1 medium Yellow Onion, finely diced
  • 2 medium Carrots, small dice
  • 2 medium Celery Stalks, small dice
  • 2 large Garlic Cloves, minced
  • 1 Tbsp All-Purpose Flour
  • 1 Tbsp Tomato Purée (Paste)
  • 1/2 cup Dry Red Wine (Merlot or Cabernet Sauvignon, optional)
  • 2 cups Lamb or Beef Stock (Low Sodium), hot
  • 1 Tbsp Worcestershire Sauce
  • 1 tsp Fresh Thyme, chopped, or 1 sprig whole
  • 1 large Bay Leaf
  • 1/2 cup Frozen Peas

Instructions:

  1. Boil the Potatoes: Place the chopped potatoes in the saucepan, cover with cold, salted water, and bring to a boil. Cook until fork-tender (15–20 minutes).
  2. Drain and Dry: Thoroughly drain the potatoes. Return them to the hot pan over low heat for 1 minute, shaking gently, to steam off excess moisture. This prevents gluey mash.
  3. Mash: Pass the hot potatoes through a potato ricer or food mill into a large bowl. Do not use an electric mixer.
  4. Finish the Mash: Gently fold in the butter, warm milk/cream, grated cheddar, salt, and pepper until just combined and light/fluffy. Set aside.
  5. Brown the Lamb: Heat oil in the skillet over medium-high heat. Add the lamb mince and brown vigorously, breaking it up with a spoon. Once browned, drain off any excess fat and set the lamb aside.
  6. Sauté the Aromatics: Lower the heat to medium. Add the onions, carrots, and celery to the skillet. Cook slowly for 8–10 minutes until the vegetables are soft and the onions are translucent.
  7. Bloom Garlic and Thicken: Add the minced garlic, flour, and tomato purée. Stir and cook for 1 minute to cook out the floury taste.
  8. Deglaze (If using wine): Pour in the red wine and scrape up any browned bits from the bottom of the pan. Let the wine simmer rapidly until almost fully evaporated (reduced by half).
  9. Simmer the Gravy: Stir in the hot stock, Worcestershire sauce, bay leaf, and thyme. Bring the mixture to a gentle simmer.
  10. Combine and Reduce: Return the cooked lamb mince to the pan. Reduce the heat to low and simmer, uncovered, for 15–20 minutes, stirring occasionally. The gravy must reduce until it is thick, robust, and clings heavily to the meat and vegetables.
  11. Final Seasoning: Remove the bay leaf and thyme sprig. Stir in the frozen peas. Check and adjust the salt and pepper seasoning generously. Transfer the filling to the casserole dish.
  12. Preheat: Preheat the oven to 400°F (200°C).
  13. Top the Pie: Spoon the mashed potato evenly over the lamb filling. Use a fork to create peaks and grooves across the surface.
  14. Cheese Gratin: Sprinkle the extra grated cheddar over the entire potato surface.
  15. Bake: Bake for 30–35 minutes, or until the filling is bubbling hot and the potato topping is deeply golden brown and crisp in patches.
  16. Rest: Remove from the oven and let the Shepherd’s Pie rest for 10–15 minutes before serving. This allows the filling to set.