Course of Legends — Adam Glendon Sidwell

When eleven year-old Guster Johnsonville rejects his mother's casserole for the umpteenth time, she takes him into the city of New Orleans to find him something to eat. There, in a dark, abandoned corner of the city, they meet a dying pastry maker who tells them of a legendary recipe called the Gastronomy of Peace -- a recipe created hundreds of years ago, shrouded in secrecy, sought after by connoisseurs everywhere and rumored to be so delicious that whoever tastes it will never want to eat anything else again. When they're forced to flee for their lives, Guster, his clever sister Mariah, and the rest of the Johnsonvilles set out on an adventure that will take them to ancient ruins, faraway jungles and forgotten caves, where they discover that their search is more than just a quest to satisfy Guster's cravings -- it is a quest that could change humanity forever.