Haha! She'd rise from the dead and kill me.
It's really a lot of work for a modern person (me!), to be honest.
The biggest secret is 3 meats. Veal, Pork, and Beef. And she would hand grind the meat herself with
one of these. In late Summer she'd also use it to make the Sauce with fresh Tomatoes from the Garden.
They had a Farm when I was a child, so damn near everything was sourced from that, and that's hard
to replicate---hence the "based on" comment. All the Meat was from their Farm, as well as the Eggs,
and the Breadcrumbs were from Homemade Bread she would let harden and go a bit stale.
I was fortunate enough to inherit the Hand Grinder from her via my Mom. It works and I still use it.
Letting the Sauce simmer for nearly the whole day and cooking the Meatballs in that Sauce on low
heat is essential.
I wish I would have paid attention a lot more than I did. I am sure there are secrets I missed.