Coarsely grind peppercorns and cumin seeds and set aside.
Roast moong dal and rice separately. Mix together, wash well and cook along with turmeric and 4½cups of water for 3-4 whistles or until both rice and lentil are very soft.
Heat 2tbsp ghee and 1tbsp oil in a large saucepan, add the cumin-pepper powder and all the tempering ingredients and once the seeds start changing color, add the cooked rice mixture along with salt.
Add ½cup of water if necessary to get to a porridge like consistency.