Rinse the Poha: Place the flattened rice (Poha) in a large bowl and rinse it under cold water. If using thick Poha, soak for about 5-7 minutes; for thinner varieties, a quick rinse is sufficient. Gently fluff with your fingers to separate the grains.
Prepare the Vegetables: While the Poha is soaking, chop the onion, dice the potato, grate the carrot, and prepare any other vegetables you plan to use.
Roast the Peanuts (Optional): In a small pan, dry roast the peanuts until golden brown. Set aside.
Temper the Spices: Heat 1 tablespoon of oil in a large pan over medium heat. Add mustard seeds and let them splutter. Then, add cumin seeds and sauté for a few seconds.
Cook the Vegetables: Add the chopped onions and sauté until translucent. Add the diced potatoes and cook until tender, about 5-7 minutes. If using carrots and peas, add them now and cook for another 3 minutes.
Combine the Poha: Lower the heat and add the soaked Poha to the pan. Stir gently to combine with the vegetables and spices. Sprinkle turmeric powder, salt, and a pinch of sugar (if using). Mix well, ensuring the Poha is evenly coated with spices.
Steam the Poha: Cover the pan and cook for 5 minutes on low heat to allow the Poha to steam and absorb the flavors.
Final Touches: Turn off the heat and squeeze lemon juice over the Poha. Garnish with roasted peanuts or cashews and freshly chopped coriander leaves.
Serve: Serve hot with a side of yogurt, chutney, or enjoy it on its own!