Gosh - the author's mom's cooking style sounds just like my mom's.
She too cooks by feel, so extracting a recipe from her is almost impossible, even when I'm right there writing things down. Just the term "recipe" makes her feel constrained - lol. Mom is also very much a "make do with what I have on hand" kind of cook (whereas I need to make sure I have all the ingredients on hand before I even start). She is also somewhat of an alchemist and takes a certain pleasure in tinkering with each dish - adding her secret potions to get the taste just right.
And as for the author's grandmother's methods of preserving food - my grandmother too lived most of her life without the benefit of a refrigerator (no electricity on the farm!). So I too remember her preserving sausage and other cooked meats in crocks sealed with fat.
Thanks for a nostalgic read, Debbie!