In order to find this element you will have to advance towards the end of the first half of the game, specifically until you can access the secondary mission of the owner of the Seafront tavern, said mission is called Bon Appétit and to complete it you will have to find ideas for a dish, that's where the suggestion to look in said cookbook comes up.
It is very important that you complete the previous quest to the tavern owner in order to replenish the ingredients and access the quest from the book.
When you manage to access the mission that interests us you will have to return to the town library> go to the left and look for the shelf next to the door to find the cookbook that you will have to deliver to the owner of the tavern, who later it will ask you to find some ingredients to obtain the money that is there as a reward.
That's all you have to know if you're wondering where to find the cookbook in Nier Replicant Ver1.22, so now that you have it, we hope you can find this book and get the most out of it during this mission.
PlayStation 4 PS4, PlayStation 5 PS5, Steam PC, Xbox One