Heat one teaspoon of ghee in a pressure cooker. Roast the rinsed & drained moong dal for a few minutes till the dal turns light brown or aromatic. Don't brown it. Then add the rinsed rice, cloves, milk, and water. Mix well.
Close the lid and put the whistle weight on. Cook for 3-4 whistles on medium flame and turn off the gas.
Once the pressure has released, open the lid and mash the rice and dal mixture well.
Meanwhile, Take a small pot, and add ½ cup of water to the jaggery. Let the jaggery melt over a low flame completely (Note: No string consistency is required). Then, strain the melted jaggery syrup into the boiled rice and dal mixture.
Mix everything well and cook for 2-3 minutes on medium-low flame until it starts to bubble up.
In another pan, fry cashews and raisins in 1 tablespoon of ghee, and keep aside.
Lastly, add roasted nuts, ghee, freshly ground cardamom, nutmeg powder, and edible camphor (if using). Mix well and cook for 1-2 minutes. Turn Off the gas. It will thicken and reach the right consistency as it cools down. Note: If the sweet pongal is thick, add hot water, and simmer for 1-2 minutes or till you get your desired consistency.
Sweet Pongal is ready to serve.