You're really not going to be happy with this site then. Even basic things with hard numbers for measuring can be wildly off. Here's an easy example https://en.wikibooks.org/wiki/Cookbook:Apple_Pie_I This recipe calls for 2.5 cups of sugar for 1 pie. If you add that much sugar to a single 8" pie, it's going to be nearly inedible. You can easily find other recipes that only use 0.75 cups per pie(a little low in my opinion).

With such a huge margin of error for just one ingredient it immediately makes me wonder if anyone actually cooked this before they wrote an article about it.