I had read a few that were in the library and really loved them. Theodosia Browning is the main character, and she owns a Tea Shop where the menus sound heavenly and are often themed, and some of the recipes are included at the back of the book. She often gets embroiled in a murder mystery, and plays a kind of Jessica Fletcher character. The titles all have some kind of tea in them, such as 'Shades of Earl Grey' 'Dragonwell Dead' 'The English Breakfast Murder' and so on. They are gentle stories, yes there are murders, but they are very much in the Agatha Christie vein, and they won't leave you jumpy or with nightmares.
I had forgotten how much I had enjoyed reading them, and when I checked, more have been written since I read them last, so I have placed some orders at the library so I can start reading the series again. If you are looking for a gentle read that will keep you guessing, and leave you hurrying to the kitchen to start baking and brew a fresh pot of tea, then do give them a go!