To make 1 cup of heavy cream, mix 2/3 cup of whole milk with 1/3 cup melted butter. Really, it is that simple. As an alternative, if you don't have milk on hand, you can also use 1/6 cup butter and 7/8 cup half-and-half. There are also a number of other substitutes for heavy cream if the rich stuff isn't your thing., How do you make heavy cream with 2 percent milk?, Sell Turnips Guide
