Looking for children’s book with beautiful mostly dark red and black illustrations (award winner?) about three boys who are tasked by an old woman to bring her a perfect apple.  The first two boys apples she finds unacceptable and punishes them by turning them into something (an animal perhaps?).  The third boy brings his apple and is rewarded and the old woman reveals herself to be a witch.  I’m not positive on those plot details.  Also not sure of the age of the book…I used to read it as a kid (1993/94).  Thanks for your help!