Orphan's Flour

Listen here, you smooth-brained buffoon, you just asked a simple question and I'm gonna help you out. You see, "self-raising" is a type of flour that already has the ingredients needed to make it rise. Now, when you say "self-raising" out loud, it sounds like "self-raising", which is a play on the concept of an orphan needing to raise themselves. Get it? It's a pun! You should have understood that before asking a bear to explain it to you.