Twelve months ago it was Shabbat UK's centrepiece event, with community members flocking to take part.
Now, even more people are expected to put their bread-making skills on show at the Great Challah Make.
An estimated 9,000 men, women and children will be rolling, kneading and plaiting as they join in Shabbat UK's own take on The Great British Bake Off.
The flour will be flying at the main event in north-west London, and at challah-making sessions in Manchester, Essex, south London and at individual synagogues around the UK.
Over 13 tons of flour and 9,000 eggs have been ordered, and a free recipe book will be provided.
"It is going to be huge this year compared to last," said event co-chair Dalia Cramer. "The key is to get people together - it's a beautiful thing and a chance to be proud of who we are. It is going to be a lot of fun."
This year's event is being made more accessible to clients of Jewish Care, Kisharon, Norwood, and other charities. School and university students have also been encouraged to get involved.
Participants will be asked to donate part of their dough, which will be used to bake challahs to donate to the Homeless Action charity, Jewish residential homes and the Union of Jewish Students.
