Ingredients
Equipment
Method
- Peel, quarter, and rinse potatoes. Place in a large saucepan, cover with salted cold water, and bring to a boil. Cook until fork-tender, then drain well.
- While potatoes cook, preheat oven to 375°F (190°C).
- In a large skillet or Dutch oven, heat vegetable oil over medium-high heat. Add chopped onion, carrot, and celery; cook until softened, about 5-7 minutes.
- Add ground lamb or beef to the skillet. Break it apart and cook until thoroughly browned, stirring occasionally. Drain any excess fat.
- Stir in flour, thyme, rosemary, and nutmeg. Cook for 1 minute, stirring constantly to cook out the raw flour taste.
- Pour in beef or vegetable stock, scraping up any browned bits from the bottom of the pan. Bring to a simmer and cook until the sauce thickens, about 5 minutes. Season with salt and pepper to taste.
- Return drained potatoes to the saucepan. Add 1 tablespoon of butter, salt, and pepper. Mash until smooth and creamy.
- Transfer the meat mixture to a 9x13 inch baking dish, spreading it evenly across the bottom.
- Carefully spread the mashed potatoes evenly over the meat filling, creating a decorative pattern with a fork if desired. Dot the top with the remaining 2 tablespoons of chilled butter.
- Bake for 25-30 minutes, or until the filling is bubbling and the potato topping is golden brown. If desired, finish under a broiler for a few minutes for extra browning. Let rest 10-15 minutes before serving.
Notes
For the mashed potatoes, boil until fork-tender, then drain thoroughly. Mash with warm butter and a splash of warmed milk or cream for a silken texture; avoid over-mashing. Ensure your ground lamb or beef is well browned before adding vegetables to build a deep umami base. Deglaze the pan with beef stock to capture all the flavorful fond. Cook the flour for a minute to prevent a raw taste before incorporating liquid. A brief finish under the broiler will give the potato topping a beautiful golden crust. Allow the pie to rest for 10-15 minutes after baking; this helps the filling set and makes for cleaner slices.
