Fifteen minutes, and not a minute later. It's impolite to keep a gentleman waiting.

[ That is, Minato is the one who better not be later. These pancakes are arriving for a very limited engagement, and if he misses it, they're gone. ]

I'll show up as my meanest self, in that case.

[ And then he closes the mental link (successfully!) so he can pack up shop and head to the cafe in question. How did he let himself get roped into this? But if it means Minato might get off his case for a little while, it'll be worth it.

Possibly. ]