I think the thing that struck me most was the elegance of the magic system in this story. I really felt the skill of crafting required to make the cakes. In a way it saddened me that Montague with all that skill at his disposal ended up using his art for something as petty as revenge. That said, I wonder could be a way to develop this idea; maybe introduce another baker who uses his art for more altruistic purposes (there is a lot to explore here with what different essences do to people and what happens when you mix multiple essences in a single cake).
As some others have mentioned the king didn't quite gel for me. It might be helpful to think about what might motivate somebody to be that carelessly unpleasant. If you could anchor the conflict between Montague and the king in a more substantial disagreement then it would give Montague more definition as a character (Either more potently evil or more likeable as a character, depending on what effect your after)
So yes would like to read more from this world