Q: What did the baker say when he found his lost dough?
A:  “That’s just what I kneaded!”

Explanation: “To knead dough” is to push and pull it; that is what you do to the dough before you let it rise.  “To knead” sounds just like “to need.”  This joke plays on these phrases that sound the same.  Do you knead more of an explanation?  No, but you might need more of an explanation.