Gemma Denham's
Army tank cake
![](https://thegreatbritishbakeoff.co.uk/wp-content/uploads/formidable/6/Joshs-7-cake-450x450.jpg)
- Bake type: Cakes
- Made in: Loughborough
- Skill level: Hard
- Time taken: Over 4 hours
About this Bake
Made from a chocolate sponge baked in a roasting tin, and a 2nd smaller sponge baked and shaped from a 5" round tin.
Top tip
It's easier than it first looks but it takes a whole lot of patience!