While the bakers themselves were shocked over the tricky task, social media was soon awash with complaints about the awkward challenge.
Taking to X, one penned: "Next week on #gbbo they'll be smelting iron ore to make their own baking trays. Making sprinkles, honestly."
"I'm not saying that Bake Off has gone too far but making them make sprinkles is the most ridiculous thing they've ever made contestants do. #Bakeoff #gbbo," a second agreed.
Another shared: "Sprinkles from scratch, that's ridiculous! #GBBO," while a fourth added: "#GBBO Making them make their own sprinkles is a step too far."