Rosanna Pansino makes a lot of DIY videos that make her 9.3M+ YouTube subscribers say Y-U-M. In her ever-popular series Nerdy Nummies, Ro (as she’s known to her fans) joins with other popular YouTubers to show viewers how to make some of the most adorably delicious-looking cookies, cakes, and sweets—often shaped like animals, emojis, and cartoon characters. For the 3.2M+ people who follow the Seattle native’s Instagram feed, Ro keeps their thumbs swiping and mouths watering with behind-the-scenes videos and pictures of the delicious desserts her fans crave. In August 2017, the New York Times best-selling author even released her first line of kitchen supplies to help people whip up yummy treats of their own.