Havent we seen Rogers cook? I cant remember lol but they would've surely had a powerful cook. And oden is very important... so if we havent seen his cook. I'd say oden was definitely the cook. Or whitebeardsDuring the flashback of his execution in chapter 819, Orochi exclaims "What is the purpose of an oden if not to be boiled?", as Oden was executed by being boiled alive, due to the nature of his name. [ Oden is a japanese dish ]
Hence my question is does anyone else believe Oden could've been a cook on Rogers or Whitebeard ships?