Onion Marmalade - makes 5 225g jars
100ml olive oil
2kg onions, peeled and finely sliced
200g demerara sugar
150g redcurrant jelly
300ml cider vinegar
50 ml balsamic vinegar
1tsp sea salt
1/2 tsp black pepper
Heat oil, add onion. Reduce heat, cover + cook ovr low heat, stirring occasionally, for about 40 minutes or until onions starting to colour.
Add sugar and jelly, increase heat, stir more often, for about 30 mins, when mixture looks a nutty brown colour.
Remove from heat for a few mins then add vinegar. Return to heat, cook rapidly for another 10 mins or so.
Remove from heat, add salt + pepper. Put into warm, sterilised jars, and seal with vinegar proof lids. It will look all treacly and brown.