Add the lamb to a bowl. Crush the garlic and ginger into a coarse paste and then add to the lamb. Rub into the lamb well and allow to sit for atleast one hour, preferably overnight in the refrigerator for better flavours.

In a large heavy based saucepan heat the olive over a medium heat. Add the marinated lamb chunks and fry for 5-6 minutes stirring well to seal the meat. - - - In this step because the lamb had so much fat on it when I cut it as I used a shoulder I actually fried the fat and used some of it instead of olive oil to give it better flavour. I also added the lamb bone into the pan to add more flavour.

Add the sliced tomatoes and cook for a further 8 minutes or until the tomatoes begin to breakdown and soften.

Turn the heat off and while it's still warm add the garam masala, fresh coriander, mint leaves and slivers of ginger.