Ella and Austin Kurtis' first attempt at making a Nanaimo bar could very well go down in history as the siblings attempt to make it into the book of Guinness World Records.
With help from their parents, who own the Northwest Fudge Factory in Levack, Ont., Ella, 10, and Austin, 5, have constructed a Nanaimo bar that weighs a whopping 530 pounds.
"It probably took us about 10 hours in total," Ella said.
Over the course of two days, the siblings worked before and after school, mixing the ingredients and pouring them into a wooden form.
Watch the video above to see how they did it.
An original Nanaimo recipe had to be multiplied by 200 to be considered for a world record.
The kids' mother, Chantelle Gorham, said the most difficult part of the project was trying to construct the bottom layer, which mostly consisted of butter, shredded coconut, crushed graham crackers and almonds.
"We do a lot of fudge so we have a lot of the ingredients that are in the middle and the top (layer)," Gorham said. "The bottom is a little foreign to us.
"It was really difficult to work with in that kind of quantity."
While the bottom layer posed many challenges, Austin said it was his favourite part of the project.
"I liked making the bottom layer," Austin said. "I like coconut because it's my favourite."
The family currently holds five dessert-related Guinness World Records, including the World's Largest Fudge slab, which weighed 5,750 pounds.
"Seeing there was no Nanaimo Bar record, we thought it was a good time to start low and hopefully no one wants to break it anytime soon," Gorham said.
The completed bar weighed in at 530 pounds and measured eight feet long, 44 inches wide and three inches high.
The family will submit their logs, photos, weights and measurements to the people at Guinness. They hope to receive the official certificate in the mail in a couple of months.
Visitors were able to see the record-breaking Nanaimo bar in person during the grand opening of the new Guinness World Record exhibit at Science North this past Saturday.
It was broken up into one pound portions and sold for $12/each or $20 for two at various locations in Greater Sudbury.
There are only a few dozen containers left at the Science North cafeteria as well as the Northwest Trading Company in McKerrow.