robbed from: nowhere! ha! this is a nooly's mammy original

2 tbsps oil
1 large onion, peeled 'n' chopped
1 lb (450g) aubergines
1 tin chopped tomatoes
2 tbsps tomato puree

Before starting slice the aubergines, sprinkle them with salt and leave them for about 15 minutes. Put the oil in a large pan and fry the onions for a few minutes. Add the aubergines and fry them for another few minutes. Add the tomatoes, tomato puree,