A Tasteful Crime — Cecilia Peartree

This is the seventh book in the Pitkirtly series of cosy mysteries, set in a fictitious small town on the coast of Fife.
When the television programme Open Kitchen comes to town, there are various reactions from the people of Pitkirtly. Jemima is glad of the opportunity to show off her baking skills, while Amaryllis looks forward to the mayhem that could result from a 'healthy eating' procession, and Christopher is aghast when he finds his ex-wife working on the project.
But they don't expect murder to be on the menu.