I hasten to add that an old school manual pressure cooker can be used on natural gas, propane, and electric stoves, any camp stove, or over a fire. With a bit of lye added, it can be used as a world class autoclave for sterilizing metal instruments and utensils with almost any available water that has not been chemically polluted. The caveat is that it must never be left cooking unattended.
I'll be trying this recipe.