First grind 6 small cardamoms with 1 tsp sugar. In a pan add 1 liter milk, 1 cup rice and grinded sugar to cook till all mix together.
Now boil ½ kg sweet potato and mash it to mix in milk and stir it quickly.
When its done add 125 gm khoya with 15 to 20 almond and 15 pistachio and cook for more 5 minutes. Dish it out in a clay bowl and garnish it with almond, pistachio and khoya and serve chilled.