Children's book. Help!

I need help finding my husbands favorite childhood book from when he was growing up. The book is RED. One of the stories that's in it is a dog selling his dog house. Another is a girl lost her key while baking cookies, and her dog finds it by biting into one of the cookies. I know it's not much to go on but he has been looking for it for over a month now and it is starting to upset him. Thank u