Once jaggery is melted completely, add full fat milk, milk powder, almond powder and saffron threads. Now turn the heat from medium to low and cook further. It may take at least 7-10mins so keep sautéing on low flame.
You may add dry fruits, first fry them in ghee and then add while cooking or garnish the kheer..
You can replace jaggery with any other sweetener like castor sugar.