
This rich beef curry is slow-cooked until tender in a fragrant coconut sauce with lemongrass, tamarind, ginger and warm spices. New potatoes make it hearty, while slightly underripe bananas add gentle sweetness and body. Serve it with crunchy cashew rice for a deeply satisfying dinner.
Preheat the oven to 180°C/160°C fan/gas 4. Heat 1 tbsp sunflower oil in a large frying pan over medium-high heat. Brown the beef in batches so the pan does not overcrowd, then transfer the browned beef to a flameproof casserole dish.
Add the remaining 1 tbsp oil to the pan. Cook the onions gently for 6-8 minutes, stirring often, until softened. Add the lemongrass, ginger, tamarind paste, garlic, turmeric, curry powder, brown sugar and salt, then cook for 2-3 minutes until the spices smell fragrant.
Pour in the coconut milk and 400 ml water, scraping the bottom of the pan to loosen any browned bits. Add this mixture to the casserole dish with the beef, stir well and bring to a simmer. Cover and bake for 1 hour.
Stir in the halved new potatoes. Cover again and bake for 30 minutes, then remove the lid and cook for another 30 minutes, or until the beef and potatoes are tender and the sauce has reduced slightly.
While the curry cooks, toast the cashews in a dry frying pan over medium heat for 3-5 minutes, shaking the pan often, until golden. Set aside. Cook the basmati rice according to the package instructions.
Place the casserole dish back on the stovetop over low heat. Stir in the sliced bananas and garam masala, then simmer uncovered for about 10 minutes, until the bananas soften slightly and the sauce thickens.
Fold the toasted cashews and crispy onions through the cooked rice, seasoning with a little salt to taste. Scatter coriander over the curry, taste and finish with a squeeze of lemon juice if it needs brightness. Serve hot with the cashew rice.
Use slightly underripe bananas so they hold their shape in the sauce; very ripe bananas can turn mushy. The curry can be made ahead after the potatoes are cooked, then cooled, chilled for up to 3 days, or frozen for up to 3 months. Add the bananas and garam masala only when reheating so the final texture stays fresh.