If you're looking for a nerdy baking project, look no further than Rosanna Pansino's YouTube channel. The baking whiz has whipped up tons of themed-treats for her online audience. Recently, she was featured in YouTube's star campaign, which highlighted online influencers who were making the biggest waves on the network. We spoke to Pansino—along with YouTuber's Michelle Phan and Bethany Mota—about her journey. Here's what else we learned.