What do you get when you combine an important cause with superstar chefs, like Dominique Ansel, Alice Waters, and Robert Irvine? A delicious digital cookbook with a philanthropic bent. Water Changes Everything, a project dreamed up by charitywater.org, a non-profit organization bringing clean and safe drinking water to people in developing nations, shines a light on just how essential water is to our health and happiness. Each recipe in the book, which features 10 celebrated U.S. chefs, includes an unspecified amount of water as an ingredient. To unlock the correct amounts of H2O, home-cooks can donate to the charity, which gives 100% of the proceeds to helping the 663 million people in the world who don’t have clean water. See a preview of the book below, which is available to download today on the organization’s website.