Some possibly useful information on how to cook vegetables from The Essex Cookery Book, 1930.
I’ve never heard of the dark/light theory of cooking vegetables. Vegetables grown in the dark should be cooked in the dark (i.e. covered with a lid) and vice versa, or so it says.
More carrot destruction here with the timings. Not quite as bad as the advice to cook them for two and a half hours from 1910 (see below) but people apparently really liked carrot mush back then. Also – in what universe does it take 15 minutes to cook spinach? You can see why we got our reputation for soggy veg.
Previous post here on Mrs Rea’s Cookery Book from 1910 – https://skittishlibrary.co.uk/the-good-the-bad-and-the-calfs-head/