I like to bake, so Carol Field's "The Italian Baker" is up there (along with Julia Child's "Cooking with Julia". Rose Levy Benenbaum's "Bible" series are great, too.
An obscure on I've used endlessly is Bill Neal's "Biscuits, Spoonbread, and Sweet Potato Pie". I have a whole collection of cookbooks I've amassed. The "great" ones are those I return to frequently.
Middle of MO
“Much of the social history of the Western world, over the past three decades, has been a history of replacing what worked with what sounded good.”
"The cost of freedom is eternal vigilance."