Obviously, the culinary arts certificate wasn't mine.
However, not to over-personalize this...let's just say I knew a man who was an expert is just about everything...not everything, but a true Renaissance man...it was a challenge to find something he wasn't good at. His wife was no slouch, either; she was beautiful and brilliant, with a fair set of technical abilities of her own, but she was a terrible cook...Lisa Douglas('Green Acres') bad. He was an excellent cook, though. Why wouldn't he be? He was good at everything else.
The problem that I noticed, though, which he didn't notice, is that his wife never learned to cook, because she genuinely believed she could never be as good as he was. Of course, her children wouldn't have cared that their father was a better cook than their mother(why wouldn't he be? he was better at everything than everybody else), as long as their mother was a decent cook, because(good or bad) she did most of the cooking.
Anyway, I learned from observation to stay out of the kitchen, and to feign ignorance, unless I wanted to eat a lot of takeout, or do all the cooking. Oh, and complimenting each effort like it was the best meal I ever ate accomplished a lot of encouragement.
Did you encourage her or correct her, and show her how it was supposed to be done?