Also, Ina Garten sells bajillions of copies, but you knew that.
"I have also encountered a few instances—none involving the Times—where publications will actually test and change cookbook recipes prior to publication."
The Times has indeed changed recipes from how they're written in the original cookbook - when they published Meera Sodha's chicken curry recipe from Made in India, they changed an ingredient. A small thing, but it's there. (Full disclosure - I work with Meera and translated East for US publication.)