The Little Ice Cream Shop by the Sea by Lizzie Chantree

Genie’s family is in crisis. Their seafront business is failing with the loss of Genie’s grandmother and her legendary ice cream flavours. Genie is determined to be the one to save her family’s heritage, but suddenly her mother wants to sell to developers and leave their shared history behind.
Buying the business and taking on a sixty-eight year old business partner, Ada, with a mysterious past and a gorgeous but distracting grandson, Genie sets out to prove her parents wrong.
Ada’s grandson, Cal, wants to protect his gran from ‘pensioner persuader’, Genie, but soon realises that living in a little seaside town and away from the paparazzi in Hollywood can actually give him time to heal. Hiding in a seafront business with its fiery owner and working as kitchen staff, is the only way he can think of to keep his ex-Hollywood glamour-puss, gran from harm.
Hiring a private detective and learning about Genie’s parent’s past makes Cal regret his own impulsiveness. The information he has unearthed could destroy their blossoming relationship and turn Genie’s world upside down.
Genie soon discovers that friends can become enemies and your closest family can have lied to you for your whole life.