It needed more than 600 eggs for the mix. It had to be baked in an industrial oven. And a forklift was brought in to assemble the all-important parts. But when it came to the crunch, did it all come together?
Watch this video of the military-style operation involved in putting together a Victoria sponge that, it's hoped, will break records.
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It's been a weekend of fun in Dartmouth for the town's Royal Regatta - including appearances from some Westcountry Olympians.
Mostly dry, sunny spells and feeling warm.
Mostly Dry, sunny spells and feeling warm.