Perfect for a cold wintery night!

1 medium yellow onion, halved and thinly sliced
1 tblspn freshly grated ginger
The following ground together to a fine powder: 1 tblspn cumin seeds, 1/2 tblspn black peppercorn, 1 Kashmiri chilli
1/2 tspn haldi/turmeric powder
2 tblspns balsamic vinegar
1 tblspn jaggery or brown sugar
Salt to taste
2 tblspns neutral oil, like avocado oil
Water