LF Soap: Beef Tallow Soap Recipe Source

We are looking for a really old easy to follow recipe (not blogger or YouTube) that we can print/buy & use. We want an heirloom recipe if possible that may have tips that people may have forgotten (such as it is done curing when you can lick it and it doesn't taste bad...that type of insight).

Does anyone have one or know where we can buy some information about this?

My husband would like to try this.