Add 1/2 cup water to 1 cup moong dal and cook in pressure cooker until it becomes soft.To 1 cup wheat flour, add 1/2 cup waterand make into a thick liquid.Heat this liquid in a fry pan and stir for a while.Mash the cooked moong dal and add it to the boiling liquid.When everything is mixed and well cooked, add sugar and stir well.Add 1/2 cup of ghee and keep stirring.When it is almost over add cardomoms.Roast cashews in 1 tsp ghee and add it to the mix. Add the remaining ghee and stir. It should become a non sticky paste but not too hard.At this stage remove the pan from the stove.Pour this mix on a large plate greaseed with ghee.Spred the cashew and cheery bits on the top surface of the halwa. Then cut this into diamonds by drawing parallellines with a knife.