Here's another way that cookbook authors can make money - besides, of course, selling their books. They can host a group trip to a location associated with the recipes in their cookbooks.
For example, Joanne Weir, a Mediterranean cookbook author, lead a trip to Marrakech, Morocco. During the trip, she offers five cooking lessons - from making lamb stew to kneading couscous by hand. They also visit wood carvers, caftan makers, seamstresses that do intricate embroidery, etc.
Anissa Helou, author of Mediterranean Street Food, lead a 10-day culinary and cultural tour of Turkey. The participants eat at top restaurants in Istanbul, take a class in making kissir (bulgur salad) at the Istanbul Culinary Institute, and visit the Blue Mosque and Ayah Sofia.
When organizing a tour, see if you can get a media sponsor or food partner to help publicize, organize, and carry out the tour. That should leave you with the fun part. Showing up, flying around, and entertaining.