Sarah

You need to like dark fairytales for this.  It's a little slow to start, and Miren is kinda cold as a main character, but considering the “our family's success is literally built on sacrifice” background... well, why wouldn't that lead to some coldness or determination to find out what's really going on and resolve what to do about what you discover?
I've not read anything else from the author to know how this fits into the mentioned Sourdough/Bitterwood universe/world-building, but it's good as a standalone book.
Cover is so lovely and creepily appropriate, in hindsight.

Very weird for a cozy romance. When I'd set it down, I'd start thinking of Kit being a walking red flag and how their relationship doesn't make much sense and she's so lovesick while he's so disdainful to everyone. And Niamh's certainty she'd never ever find love again if she can't have him, but she doesn't deserve him.... oof. Cozy romance veneer over something really unsettling. And yet I enjoyed it as I was reading, it just felt oddly slow-paced. I'm a bit foggy brained from being sick so maybe I'd enjoy something else from her more? No idea.