Cooking with Henry and Elliebelly by Carolyn Parkhurst
This book is one of the best picture books I've read in a long time for pure silliness. Henry is hosting a cooking show with his adorable and exasperating two year old sister Eleanor (aka Elliebelly).
I especially love the commercial: "Buy a car! Buy a giraffe! Buy a rocket ship! Buy some pudding! NOW NOW NOW NOW NOW!!!"
Henry is a wise child.
First Son and First Daughter were inspired to create their own cooking show.
Kansas also has a little cameo in the book.