Frying the onions slices in a big batch defiantly makes the job easier later. As onion starts to color, reduce the cooking time to 1 minute interval until you get crisp and evenly colored beresta. Cook for another 4 minutes in the microwave. It's a pot and pan that you don't have to wash so instead we're gonna use the microwave so you just take some vegetable oil and some shallots nicely Findlay Chop shells you're gonna put in the microwave for about two to three minutes. you wanna go in there and stir it every two to three minutes takes about 10 minutes, all told. Next, cook the onions in 2-2.5 minutes intervals and stir in between the intervals. Take the bowl out of the microwave and stir the onions. Though the process of making Birista / Fried onion for biryani is only frying the onions in oil till browned, there are some tips and tricks which will help to make perfect Birista for biryani at home. Microwave the onions for 4 minutes.