Not exactly related to this chapter, but responding to this answer, while I think it's true that Kaibara is far superior in terms of culinary artistry and touching the hearts of people who eat his dishes, I'd say it's Yamaoka's creativity that saves him multiple times.
I won't say which chapters, where Yamaoka's creativity lends him a win or at least a draw (coz that'd be spoilers), but because he's basically outmatched by his father so many times, being creative is the only viable way to give him an edge against Kaibara.
Even better, even the judges seem to recognize this as well. Whereas Kaibara is the pinnacle of culinary traditions, Yamaoka presents another possibility - where cuisines can develop going forward, unbound by centuries-old traditions.
They may fail at times, or succeed instead, but still, fresh developments that sometimes even Kaibara can't think of on the top of his mind.