Add the cream of tartar and vanilla extract, [he says when he sees Wally is done.

Sifting takes longer, because there's no real way to do it quickly, and Dick decides that he's done before repeating the process five times like the recipe tells them to.]

Kay, I'll pour this [he points at his bowl] into your bowl slowly and you can keep mixing everything as I do.

[He waits for Wally's okay before starting to do anything.]