Ha yes it's evaporated milk pet was the common, possibly the only, brand when mom wrote this recipe down. I sometimes forget not everyone I share recipes with is as old as I am hahaha. . . I think your homemade whip recipe would be perfect.
Thanks for the link I may try that this year. I hope you let me know how it works out for you if you choose to make it.
Also as a side note once we cut our fudge we wrap each piece individually with plastic wrap. And freeze it to keep it fresh.