First start by making the paste for the curry. Add the garlic, ginger, chilli, lemongrass, lime and coriander to a pestle and mortar and crush into a paste
2
Add the aubergine cubes to a hot pan with some oil and cook for 5 minutes. Remove the aubergine from the pan, add a little more oil to the pan and put in the onions and cook for 3 minutes until browned
3
Put the aubergine back in the pan with the onions and add the curry paste and cook for 2 minutes. Add the coconut milk and simmer for 10 minutes until reduced slightly
4
Meanwhile, for the sag aloo, parboil the potato cubes in a pan of boiling water for 5 minutes and then drain
5
Heat some oil in a pan and cook the onion, garlic and ginger for 2 minutes and then add the potatoes, garam masala, tumeric and coriander and cook for a further 3 minutes
6
Add the spinach and cook for a further minute, then serve with the aubergine curry, garnished with fresh slices of chilli and coriander leaves, if liked