Dry roast the oats in a pan until golden brown (Please take care – do not burn the oats). ( if you wish you can roast the oats in 1 tbsp of ghee, it will give more taste )
Heat ghee in a pan and roast the cashews, raisins and coconut pieces till they turn golden brown. Once done take it from ghee and then add banana pieces and roast for 2-3 minutes. Keep all these roasted items aside.
Heat a pan, add jaggery and melt it along with ½ cup of water. Then filter the melted jaggery to remove any impurities. Again transfer the filtered jaggery to the pan. Adjust the heat to medium.
Add the roasted oats and thin coconut milk and mix well. Cook on medium heat till oats become soft and get well combined with the jaggery.
When it starts thickening, add cardamom powder and roasted banana chunks. Cook for another 2-3 minutes on a medium flame. Keep stirring continuously. Then add thick coconut milk, stir for a minute and switch off the heat.
Add roasted cashews, raisins and coconut pieces.