Cut all onion into thin slices and sprinkle pinch of salt on onions.

Take pan,pour oil and on stove flame.

Now after 1 minute add sliced onions

Make it saute untill it becomes crispy

When it becomes crispy and brown,take out and spread it over tissue paper or tawa.

Crispy fried brown onion is ready to use.you can save into ziplocks up to 1 month and use it in any kind of salan, biryani aswell.