Fortunately, my father is a splendid cook who taught us how. He still uses a 1936 copy of The Joy of Cooking, but mostly cooks by inspiration.
My maternal grandmother never believed my dad could cook . . . and she knew her daughter couldn't . . . so every Thursday she came over and cooked dinner so that her grandchildren wouldn't starve to death.
I do the same. I learned all I know from that book. it is dog eared and broken along the spine in 3 places!