She revealed: "I like to make healthy bakes, and if you do everything in moderation you can lead a healthy life, and still look good. I am trying to use flour alternatives, less butter, and less refined sugar by using honey instead. I am trying to make the bakes appealing at the same time as being a healthier option."
But she started off badly in the very first round, making a complicated chequered sponge for her chocolate and hazelnut cake, using quinoa, almond and hazelnut flours.
Her cake collapsed and she tried to hide the fault with flowers at the last minute.
Berry told her: "You've made yourself extra challenges that we didn't ask for."
And the 80-year-old judge said of her ice cream roll: "It does look a little bit sad, but I know you were trying to show us a lot of skills."
It was a close call for photographer Ian Cumming, who Berry and Hollywood said was in danger of being sent home, despite being named star baker for the previous three weeks in a row.
His honey and pear cake did not go down well with Hollywood and he finished fifth out of eight in technical challenge. But he managed to pull it back with his tropical flavoured, desert island inspired, ice cream roll.
Nadiya Jamir Hussain stole his star baker crown after wowing with her flavours and presentation.