The Cooking Festival is an annual competition to see who cooked the best dishes. The player must give any cooked dish to Thomas to join. After giving it to him, the dishes presented by participating villagers and also by you will be judged by Gourmet, who will then announce the winner.
Since players may not have access to the kitchen in the first year, they may not be able to compete in the Festival. However, they can still enter the competition if they bring store-bought Grape Juice from Aja Winery, although they cannot win the contest with it.
At the 15th of Spring, Mayor Thomas will ask you to bring 3 vegetables (depends on what year). You can either decline or accept. If you accept, it will be your responsibility to bring the vegetables to him on the 21st of Spring or not. This requires you to have purchased at least the medium rucksack.