2kg green tomatoes
50ml olive oil
1kg onions (caramelised)
568ml vinegar
500g brown sugar
20g salt
2 x chillis
spices
storage jars, with lids - sterilised
Thinly slice the onions and place, with the olive oil, in a large heavy bottomed pan over a low heat fro one hour, stirring occasionally. The onions should be brown and the natural sugars released.
While the onions are cooking, roughly chop the tomatoes and prepare the jars.
To sterlilise the jars: clean and dry thoroughly and either, fill with boiling water and leave a few minutes, or place in a warm oven for 10mins.
When the onions are cooked, put the tomatoes and all the pther ingredients into the pan.
Cook over a low heat for at least 1.5 hours.