• Prepare drained rice (refer to the related video).
• Wash, skin, and slice potatoes into one centimeter thick strips.
• In a pot, add oil and liquid saffron.
• Arrange potato slices to cover the bottom of the pot.
• Arrange rice on top and bring all contents to the center.
• Make a few holes on the rice pile, cover and let steam.
• Cover the lid with a kitchen towel, place on pot and cook for 30 minutes on a lower heat.
• Place a plate on top of the pot, turn over with the pot to place contents on the plate.
• Serve as you like.
• Now enjoy (nooshe jan). 

If you want to get a good  crunchy rice (tadeeg) you must cook rice longer, but use a low heat.