This is delightful, and I'm not just saying it because I identify with the chocolate-obsessed beast of the title. The story goes along fairly well-defined lines at first: a young girl runs away from home to see the world and prove herself capable, and that the girl is a girl dragon doesn't take away from the familiarity of it all. But the taste of chocolate proves transformative, and Aventurine is suddenly a different shape, a human shape, and while that's very upsetting it's also an avenue for gorging, because if human shapes can do nothing else they can apprentice themselves to chocolatiers, because of course that's what any self-respecting apex predator would do! The results are fun and feel-good and I love how nearly all the bonds that Aventurine forms on her adventures are with other women - other young women, especially - and they're all willing to help save the day when her (genuinely) loving family comes looking for her.