The soap actor who plays Sonia Fowler in the BBC series shared that her 10-year-old daughter Eliza had made her "the proudest mum alive" but added that she hadn't mentioned much about her star turn in the Bake Off tent as it was "nothing to do with me whatsoever" and "her adventure".
In fact, posting on Instagram Cassidy admitted she had initially tried to put Eliza off going for the show as she thought competition would be too tough - but said she had been proved wrong.
She posted a photo of Eliza wearing a signed apron and holding up a certificate, writing: "This is Eliza. She was 10 and decided to enter for the junior bake off.
"I said, oh Eliza, you’ll never get through, thousands apply and I don’t want you to be disappointed. She got through. And her confidence, determination and maturity has blown me away.
"I am proud of my daughters everyday. But to watch one of them be so kind and helpful to others in the tent every night this week, has made me the proudest mum alive. I haven’t said much about it- Nothing to do with me whatsoever. This was her adventure."
Cassidy added: "Thank you @britishbakeoff for having her and looking after her so well throughout the process. My advice to all. When your child wants to do something don’t stop them. Dreams do come true."
The mum of two's celebrity friends commented to say how much they had enjoyed watching Eliza take part in the programme, with many of her EastEnders co-stars offering their congratulations.
Milly Zero, who plays Dotty Cotton, wrote: "Super proud of our queen baker."
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Lacey Turner, who stars as Stacey Slater, commented: "She’s an absolute legend I love her."
Honey Mitchell actor Emma Barton added: "She was amazing.. well done beautiful Eliza."
Jake Wood, Anna Maxwell Martin and Gaby Roslin also congratulated Eliza.
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