Help finding a book

[Sophia]

Book is about a mother who's little girl who gets kidnapped by her best friend so she turns into an detective to find her little girl and she searches for years. She got a lead one day and a man detective started helping her and they ended up falling in love. In the end of the book the women finds her child and the man purposes to the woman as they are all making cookies

[Lobstergirl, au gratin]

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