Shannon Mignano's
Crystal geode cake
![](https://thegreatbritishbakeoff.co.uk/wp-content/uploads/formidable/6/7EB34945-A976-4C36-9D5A-B077AD353E51-450x450.jpeg)
- Bake type: Cakes
- Made in: Bristol
- Skill level: Hard
- Time taken: 4 hours
About this Bake
I love crystals and decided to make myself a crystal geode birthday cake!
Top tip
Use hard-boiled sweets to make edible crystal agate slices!