
A comforting, slow-cooked lamb stew infused with fresh rosemary and red wine, topped with a crispy, cheesy potato rosti. This hearty pie is the ultimate winter warmer, perfect for family dinners or cozy evenings.
Season the lamb chunks with salt and pepper in a large bowl, then toss them in the plain flour until evenly coated. Heat 1 tablespoon of olive oil in a large flameproof casserole dish over high heat. Brown half of the lamb pieces on all sides until caramelized, then transfer to a plate. Repeat the process with the remaining lamb and set aside.
Reduce the heat to medium and add the remaining 1 tablespoon of oil to the same pan. Stir in the chopped onion and carrot, cooking for about 10 minutes until softened and golden brown. Add the minced garlic, chopped rosemary, and tomato puree, and cook for another 1-2 minutes until fragrant.
Return the browned lamb and any juices from the plate back into the pan. Pour in the red wine and stock, then stir in the redcurrant jelly. Bring the mixture to a simmer, then reduce the heat to low. Cover and cook for 2 to 2.5 hours, or until the lamb is tender and the sauce has thickened.
While the lamb is simmering, prepare the topping. Place the potatoes in a pan of water, bring to a boil, and cook for 10 minutes until slightly softened but still firm. Drain and let them cool until safe to handle. Grate the potatoes using the coarse side of a grater into a bowl. Mix in the grated cheddar, half of the melted butter, and a generous amount of seasoning.
Preheat your oven to 190°C (170°C fan/gas 5). Transfer the lamb stew into a baking dish (approximately 20 x 30cm). Scatter the grated potato mixture evenly over the meat and tuck in a few small rosemary sprigs. Brush the top with the remaining melted butter and bake for 35-40 minutes until the rosti topping is golden and crispy, and the stew is bubbling.
For the best rosti texture, use floury potatoes like Maris Piper or King Edwards. If you're short on time, the lamb stew can be made in a pressure cooker in just 20 minutes or a slow cooker on low for 6-8 hours. This pie also freezes beautifully; simply defrost overnight in the fridge before reheating.




