I would like to nominate Poison Study by Maria V. Snyder.
Starred Review. Shivers, obsession, sleepless nights—these are the results not of one of the milder poisons that novice food-taster Yelena must learn during her harrowing job training but of newcomer Snyder's riveting fantasy that unites the intelligent political focus of George R.R. Martin with a subtle yet potent romance. Through a stroke of luck, Yelena escapes execution in exchange for tasting the food of the Commander, ruler of Ixia. Though confined to a dank prison cell and doomed to a painful death, Yelena slowly blooms again, caught up in castle politics. But some people are too impatient to wait for poison to finish off Yelena. With the help of Valek, her steely-nerved, cool-eyed boss and the Commander's head of security, she soon discovers that she has a starring role to play in Ixia's future—a role that could lead to her being put to death as a budding magician even if she hits each cue perfectly. The first in a series, this is one of those rare books that will keep readers dreaming long after they've read it.