I basically learned by osmosis ie. cooking porridge and peeling potatoes for dinner as a kid and then occasionally taking over cooking duty as a teen. I don’t remember the recipe books from Home Ec. Perhaps they were photocopied handouts.

But I do remember one old vintage book that may have been “Australian Home Cookery”. It possibly once belonged to Granny.

It’s creative commons by now so have at it https://archive.org/details/AustralianHomeCookery/mode/2up

Edit: Some of the stuff in there is incredibly dated and sus, such as aspic. But the casseroles, desserts and sauces have some solid basics.