I think he is being sarcastic here, but can you tell me in what sense this sentence is sarcastic? If not sarcastic, why did he say this?

Native speaker’s answer
Rebecca
This is not sarcasm; it's a play on words. A play on words is a humorous way of using words that sound the same but have different meanings. Before Conan says this joke, they discuss how boars (wild pigs) are commonly eaten in Tuscany. He is making a joke that Jordan's favorite wine pairs with "bore." This means that Jordan's favorite wine pairs well with a boring person (in this case, Jordan).