Love on the Vine by Maggie Deryn

A villa in the South of France. Two lonely hearts. One summer to fall in love.

He was the hot, older man she’d been fantasizing about for months…
Olivia Peterson never expected to fall for her father’s childhood friend. But when Jake Vos shows up for Christmas dinner looking more edible than a five-course meal, she momentarily forgets her name and her better judgment. One of the most celebrated names in the wine industry, Jake is so blown away by Olivia’s culinary talents that he offers her a job for the summer in the South of France.
Olivia jumps at the chance, determined to make the most of her time abroad by going after what she wants: a spot in the best culinary school in Paris and a summer fling with her temporary boss.

But Olivia soon learns that her feelings for Jake run deep and what started out as temporary has left her craving more. He may be the one giving her lessons in taste, but Olivia is determined to be the one to finally give him a taste of love.