做吃 isn't a Chinese words, they are two verbs while 烹调 is a common Chinese word

做吃的 is colloquial style，we don't use it in our essay.烹调 is professional.There are a word “煮饭” we always use.

烹调=烹饪 ：more professional 这位厨师的烹饪技巧很专业！ 做吃的=做饭 ：Ordinary people do dinner 今天我来做饭。