Before There Was Betty Crocker...
...there were a number of notable cookbooks; those extant are pictured on the pages of the today's blog entry at Booktryst.
In 1474 the Italian humanist Bartolomeo Platina (1421-1481) compiled and published in Rome the first printed and dated cookbook, De honesta voluptate et valetudine, Libri de arte coquinaria, haute cuisine, Libro novo (Of Honorable Pleasure and Health), a monument to medieval and Renaissance cuisine. In Latin, it was reprinted in many subsequent editions, and translated into Italian, German, and French (it was a best-seller in Paris). In 1475 Platina was named Vatican librarian by Pope Sixtus IV.
Eleven years later, in 1486, Küchenmeisterei (Cooking Mastery), a book sometimes and erroneously attributed to Gutenberg (out of business since the late 1450s, his print shop taken over by his financial partner, Johann Fust, after a lawsuit in 1455), was published by Peter Wagner (f. 1483-1500) in Nuremberg.
See more at Booktryst.