Heat 9 (S04E09)

Judges Nadiya and Allegra challenge the bakers with a technical task featuring a twist on the traditional British battenberg. This time, they must create a rhubarb and custard version, requiring them to skillfully bake four equally sized sponges and assemble them into a flawless checkerboard design. Meanwhile, Harvey, Joseph, Macy, and Sophie take on the challenge of crafting a massive cookie that showcases their personalities in icing form. Will their impressive 30cm cookie be evenly baked and visually striking? With only two spots remaining in the quarter-finals, Nadiya and Allegra demand nothing less than perfection.