When I tell people I write culinary mysteries, a fair number of them say, "Oh, I love reading those kinds of books." Others say, "I've never heard of a culinary mystery. Did you come up with that idea yourself?" Old though I am, the culinary mystery predates me. Rex Stout, who created gourmet detective Nero Wolfe, is a pioneer in the genre. His 1938 publicity tour for the fifth Nero Wolfe mystery, Too Many Cooks, included giveaways of book-shaped boxes containing recipes for 35 dishes mentioned in the mystery.
The current Buy-It-Now price on eBay for a recipe "book" signed by Rex Stout is $600. He signed the page containing this description:
Wherein vagrant tastes and fugitive flavors are sniffed to their hideouts, fingerprinted and imprisoned in savory dishes—by that celebrated Nemesis of crooks and envy of cooks, NERO WOLFE, private investigator.