I don't have a 2 liter stainless steel cooker/ induction stove! What Should I do?

Buy them - else you need to figure out the right timings.

My cooker does not whistle!

Get it checked. Most Indian cookers whistle.

How can I scale up the recipes?

Most recipes serve 2 (otherwise mentioned in the recipe). When you scale up, cooking time varies, but whistles remain the same.

How to check my cooker?

Add 1/4C water to your 2L cooker. On high heat, first whistle comes in around 1 minute. On medium heat, it takes around 3 minutes. On details on how to do this (namely Standardising your cooker), please check out this link - What is OPOS? for a video.

Food is overcooked/ undercooked? What happened?

Reduce/ increase cooking time.

Food is burnt!?

Reduce cooking time/ add more water. Use standard equipment. Do not cook beyond 5 minutes for no water recipes.

Food has a raw smell!

Use roasted spices/ OPOS ginger garlic/ onion pastes.

Recipes do not work for me !

Check your cooker. Cook at 600W/ 1200W settings as per the recipe. If using gas/ electric stoves, check timings by heating 1/4C of water in your 2l cooker.


  • Pressure cooking is always with whistle on, right from the beginning.
  • Do not use an inner vessel/ add water, unless the recipe calls for it.
  • Preheat electric stove tops before cooking and remove cooker after cooking.
  • Safety first! Understand a recipe before attempting it !
The OPOS® methodology has been created and copyrighted by Mr. Ramakrishnan of One Page Cookbooks fame. The above content and video belongs to him and has been reproduced with permission

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By jaiprabha on Feb 13, 2018

good receipes. When i cook vegetable biryani for 5 people do i increase the ingredients proportionately. What size cooker should i use? Do i follow the same timing and whistles?Itwould be useful if you guide me on this.

I would suggest doing it twice in the beginning. Once you get comfortable, slowly scale up.--DK

By lalitha m on Feb 1, 2018

Hi dear thank u ... i am a mother of 3 month old baby will be moving to saudi. I need to cook for my hubby without wastinh much time because my baby needs all the time n no help for me. So planning to buy things from india n go Can u tell me the brands of blender.. induction stove n cooker too.. which is good steel or aluminium and pressure pan or pressure cooker. Also weighing machine which brand. Thank u so much dear.

By Jayanthi Sridharan on Oct 28, 2017

Hi can u help me do Mango Virgo OPOS way? I tried today. 1c sugar, 1/2cup water ... left in cooker for 5 whistles. The. I added ghee, 1 cup almond flour, 1 cup mango pulp, 3/4 unsweetened khoa. Turned out like a halwa instead of a burfi. Please suggest changes to get a burfi out of this OPOS way . Thanks

Will def. post a OPOS burfi that you can use as a baseline for your own recipes. As for your question - I apologise, I have no idea what Mango virgo is. --DK