Mulakishyam is the easiest curry that could be made.The way it is explained here, not so exciting. Just boil the required amount of dal,thuvara parippu , add either, kumbalam or kaya or chena with turmeric n red chilli powder. add salt bring to boil n pour coconut oil n add few curry leaves. Optional add hing.
This is not the recipe for traditional mulakoshyam. You do not splutter mustard seeds, once the vegetables are cooked you pour a little raw coconut oil on top.