From Longman Dictionary of Contemporary Englishbe a good/wonderful/terrible etc cookbe a good/wonderful/terrible etc cookCOOKto be good or bad at preparing and cooking food → cook
Examples from the Corpus
be a good/wonderful/terrible etc cook• As a result, the adult John is obsessed with food, has an overstocked fridge and is a good cook.• He is a good cook, isn't he?• My aunt and I are good cooks.• Nils may be a good cook, but his time will be better spent away from the galley.• Of motivation to get good grades in school or to be a good cook?• Franca, said to be a good cook, was not a good cook, just an ingenious cook.• To be a good cook you have to do a lot of things precisely, but it requires no understanding.• Zelah was a good cook and he enjoyed the meal. 