During the Food Festival event in Tarisland, you can open Gourmet Chests across the world to keep the recipes of the festive meals and earn Rainbow Candy. These chests are located in the most hidden places and can be challenging to find without any hints.
There are 12 Gourmet Chests in the Food Festival event, four in each of the following areas: Ancash Canyon, SilverLit, and Misty Forest. Every chest requires you to have a specific meal of Pure quality in your inventory to open it. If you’re reading this in the early days of the event, you might not be able to open all of them because the recipes are time-gated.