1. Mix all the ingredients together in the slow cooker, apart from the spinach, if using. 2. Set off on low for 6-8 hours, or until the lamb is soft and tender. If you are adding spinach, lift the lid and stir in and leave to cook for a further 20 minutes. 3. Serve with rice and naan bread.
Notes
Curry Paste - you can use your favourite curry paste for this, madras is a popular one with lamb, but if it’s too hot, use a milder one such as korma. You can also make your own curry paste if you have the time or inclination! Increase or reduce the amount of curry paste you add according to your own taste.