Heartless by Marissa Meyer
Synopsis from GoodReads:
Catherine may be one of the most desired girls in Wonderland and a favorite of the unmarried King, but her interests lie elsewhere. A talented baker, she wants to open a shop and create delectable pastries. But for her mother, such a goal is unthinkable for a woman who could be a queen.
At a royal ball where Cath is expected to receive the King’s marriage proposal, she meets handsome and mysterious Jest. For the first time, she feels the pull of true attraction. At the risk of offending the King and infuriating her parents, she and Jest enter into a secret courtship.
Cath is determined to choose her own destiny. But in a land thriving with magic, madness, and monsters, fate has other plans.