"I don't know how much ketchup; just add it until it tastes good."
My mom is particularly good at making two things: salad dressing, and Bolognese sauce. The latter is my favorite dish of hers. She (and the rest of Japan) call this "Meat Sauce," I guess because of the ground beef. Japan does a lot of deliciously wonky things with their pasta -- fish egg & butter, ketchup & deli ham, fermented soy beans, and so forth. I know my mom's "meat sauce" is far from the authentic Bolognese recipe, but it tastes like home which makes it the most delicious thing in the world.
I still do not how to make it taste like hers. But I get closer and closer each time I try. Every time she makes it at home I STARE at her from the counter and try to eyeball the measurements. But it's hard when she adds what seems like 2 tablespoons of Worcestershire Sauce, and then 30 minutes later she comes back and shakes a few more drops WHILST adding some more broth and it's like WAIT. Please, one at a time. And there goes a few more while I'm not looking.
I don't have a recipe yet...but I will soon.