Heat 6 (S04E06)

Nadiya and Allegra have selected their initial five quarter-finalists, leaving just five spots available. In the tent, bakers Jenna, Ali, Dylan, and Robin must impress with their skills as they take on the challenge of a chocolate ginger volcano biscuit. The key is to incorporate bicarbonate of soda for a surprising honeycomb center. Following this, they face the food illusion showstopper, where they must craft desserts that resemble savory dishes. Who will successfully create the culinary magic needed to secure a spot in the quarter-finals?