Drinking: Butter Toffee Coffee
I was introduced to Madeleine L'Engle's writing on a family road trip many years ago. At a rest stop, my mother handed out books to my sister and I to keep us entertained for the next segment. My book was A Wrinkle in Time. From the first page, I was sucked into the story of Meg and Charles Wallace Murray. Calvin O'Keefe was my first literary crush (and probably paved the way for my die-hard Ron Weasley fangirlism a few years later). It's a perfectly crafted science fiction novel with no "hard" science in it. I could argue it's her best book, but that would be misleading. A Wrinkle in Time is just one of the many wonderful books L'Engle wrote during her lifetime.
In fact, I would be hard pressed to name my favorite L'Engle book. I'd say my top three are: Many Waters, the adventure of Meg & Charles Wallace's twin brothers; Troubling A Star, about Vicky Austin's trip to Antarctica; and Two-part Invention, the non-fiction story of L'Engle's marriage to actor Hugh Franklin. Her books, especially those for young adults, feature smart, strong young women making their way in an uncertain world. All of her works, both fiction and non-fiction, reflect her strong faith in God, her loving marriage and family, and her adventurous life.
If you're looking for a good place to start with L'Engle, I recommend either A Wrinkle in Time or The Small Rain, her first novel. However, you can't really go wrong with any of her books. Each is stand-alone but also interwoven into the greater fabric of her work.
That's why I love Madeleine L'Engle