They put the pickles down to work on the peanut butter, which opens a lot more easily. They don't see a usable knife, so they just grab more bread and dip it in.

Kris. "'S a nice name." Kinda rhymes with Frisk. "Nobody is. The Castle stole everybody. It's a hub of worlds, an' it's in the sky. We're all stuck here. Sorry." They dip their head apologetically to offset that they don't sound that sorry. It's too normal for them, now, and Kris doesn't seem to be freaking out (yet).