Whoopi Goldberg swears like a trooper, according to Choccywoccydoodah creator Christine Taylor.
The master chocolatier is back on the Good Food channel for Choccywoccydoodah: Starstruck - the fourth series of the fly-on-the-wall programme - which sees her and the team challenged to make kooky confections for famous customers in the UK and the US.
Christine revealed: "I went over to New York to bake cakes for Whoopi Goldberg in some lovely community kitchens. I used to bake in commercial quantities - it was a long time ago, but I thought it would be like riding a bicycle. It was disastrous. I set fire to the kitchen."
She describes the Sister Act star as "funny and warm", as well as a fellow lover of fruity language.
"I'm quite fond of a four-letter word and so is Whoopi so we got on quite well. And not all those four-letter words are 'cake'! At the very last minute it went to plan but Whoopi will never know - until she watches it - that it almost didn't!"
Other stars featured in the new series include writer Jackie Collins and designer Julien Macdonald, who Christine admits was hard to please.
"I wouldn't say that Julien Macdonald was a diva but he was very entertaining... He challenged us to make the wedding cake for his best friend Grace Woodward. The pressure was on him to get this right.
"He has a rule that he won't make wedding dresses. He certainly won't make a wedding dress for someone he knows, but she somehow manipulated him into agreeing. And I think that stressed him. Then he agreed to challenge us to make her wedding cake. But it wasn't within his control."
But she revealed the Welsh fashion designer was "almost happy" with the end product.
:: Choccywoccydoodah: Starstruck starts on Good Food on Sunday, March 24.