A woman was left shocked after finding a giant foot-long Rice Krispie Square for sale - containing a whopping 3,840 calories. Millie Hutchinson, 30, was shopping at Cracker Barrel, a chain of restaurant and gift stores, when she came across the colossal treat. A video shows Millie, a Brit currently living in Cincinnati, Ohio, filming her stunned reaction as she opens the Rice Krispie Square. As she pretends to use it as cover from the rain above her head, she's heard saying to the camera: "That ain't a f***ing snack kid, that's a f***ing prop." She continues to joke while in hysterics and adds: "Imagine launching that in your kid's lunchbox, that could feed a f***ing village." She then tucks into it, taking one bite while exclaiming "what the f***, why is it that big?!" Millie, a full-time mum, originally from Walsall, West Midlands, said afterwards: "My excitement was because we don’t see that in England. "Even for the festive season we don’t get the extra-large stuff, I won’t lie I was over the moon. "People ask me if things are oversized in America and I tell them that's a misconception, but I was wrong." Dubbed the "treat sheet" by Kellogg's, the Krispie is just under 40 centimetres long, just over 30 centimetres wide, and weighs 907 grams. Designed to be eaten in 24 servings, the sheet clocks 3,840 calories in total.