Who Ate All The Cookie Dough? - By Karen Beaumont

Mama Kangaroo asks around everywhere, if anyone knows who ate all her cookie dough. In the end of the book, you lift a little flap, and discover that it was Baby Kangaroo! He was hiding in her pouch, all along! Children learn to recognize different animals by their names, while enjoying a rhyming storyline.  The cartoon-style illustrations are colorful and large.