Fictional book about a personal chef who delivers meals to a man that never leaves his house

[Deborah]

The young woman is a private chef. At first she never sees him, just leaves the meals. Then she gets to know him. The man lets her in on one of her deliveries and she sees that he has a beautiful garden. She falls for him. He leaves his home to visit her.

[Kris]

Deborah, what's the genre (which we need to add to the topic header) - e.g., adult romance? contemporary or historical?

Around what year did you read this book?

Story's location/ country?