From heavy cream cream ( organic) you can make butter. Anju our neighbor gave this information .Thank you Anju.
Yesterday, I bought organic heavy cream
small packet. Boil it at night and add good culture dahi and keep in a-warm place. Next day put it in vita-mix.. The butter separates from cream. You get buttermilk too. Melt the butter into ghee. Home made ghee is ready.