Why Were Drew Barrymore and Brooke Shields Celebrating Cake in the Hamptons?

On July 3, Lizzie and Jon Tisch welcomes guests including Drew Barrymore, Neil Patrick Harris and David Burtka, Brooke Shields, and Christy Turlington Burns to their Bridgehampton home to celebrate the release of The Power of Sprinkles, a new cookbook—or, ahem, cake book—from celebrity baker and Flour Shop founder Amirah Kassem as well as the release of her new collection of dinnerware for Williams Sonoma. The book shares recipes for Kassem's popular (and much Instagrammed) explosion cakes, which were served at the event, and it seems safe to say that a delicious time was had by all.