Grandma's recipe card had no measurements, took me 20 years to get it
Found her handwritten card for apple coffee cake last month and it just said 'flour, sugar, butter, etc' with zero amounts. I spent 4 tries guessing ratios before I realized she always baked by feel, not numbers. Anyone else ever get a family recipe that's basically a riddle, how do you crack it?
Tracked down my great aunt's dumpling recipe that way. Card just said "make dough, roll thin, drop in broth" like that tells you anything. What finally worked was calling my cousin who watched her make them as a kid. She remembered things like "about a coffee cup of flour" and "a pinch of salt in her palm." So I started measuring out what she described and writing it all down myself. Took a few tries but now I have real numbers. Find somebody who stood in that kitchen with them, that's your best bet.