Rosanna Pansino is the creator and host of Nerdy Nummies, the internet's most popular baking show. She is a Washington native who, upon graduating college, moved to Los Angeles to start her own production company. Pansino launched Nerdy Nummies in late 2011 and the show's audience grew very quickly. Her videos have been viewed more than 1 billion times - making Rosanna one of the most-watched personalities on YouTube. The Nerdy Nummies Cookbook is her first book.