Geode Cake

7 mins
Serves 1
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Directions

  1. 1Melt isomalt nibs in a bowl to create geode crystals.
  2. 2Melt isomalt nibs in a bowl to create geode crystals.
  3. 3Melt isomalt nibs in a bowl to create geode crystals.
  4. 4Place a sheet of parchment paper in a 6 inch round cake pan.
  5. 5Place a sheet of parchment paper in a 6 inch round cake pan.
  6. 6Place a sheet of parchment paper in a 6 inch round cake pan.
  7. 7Pour melted isomalt into the pan and spread evenly.
  8. 8Pour melted isomalt into the pan and spread evenly.
  9. 9Pour melted isomalt into the pan and spread evenly.
  10. 10Let isomalt cool down then peel it away from the parchment paper.
  11. 11Let isomalt cool down then peel it away from the parchment paper.
  12. 12Let isomalt cool down then peel it away from the parchment paper.
  13. 13Use a torch to remove fogginess and any imperfections.
  14. 14Use a torch to remove fogginess and any imperfections.
  15. 15Use a torch to remove fogginess and any imperfections.
  16. 16CAREFULLY break the isomalt to create shards.
  17. 17CAREFULLY break the isomalt to create shards.
  18. 18CAREFULLY break the isomalt to create shards.
  19. 19Break rock candy into smaller pieces.
  20. 20Break rock candy into smaller pieces.
  21. 21Break rock candy into smaller pieces.
  22. 22Prepare a cake and carve it into a half sphere shape.
  23. 23Prepare a cake and carve it into a half sphere shape.
  24. 24Prepare a cake and carve it into a half sphere shape.
  25. 25Cover the cake with green buttercream and chill.
  26. 26Cover the cake with green buttercream and chill.
  27. 27Cover the cake with green buttercream and chill.
  28. 28Mix food safe molding putty and create molds using rocks.
  29. 29Mix food safe molding putty and create molds using rocks.
  30. 30Mix food safe molding putty and create molds using rocks.
  31. 31Roll out gray modeling chocolate and press it into the molds.
  32. 32Roll out gray modeling chocolate and press it into the molds.
  33. 33Roll out gray modeling chocolate and press it into the molds.
  34. 34Peel the molds off the rocks and place them on the cake.
  35. 35Peel the molds off the rocks and place them on the cake.
  36. 36Peel the molds off the rocks and place them on the cake.
  37. 37Carve out the center of the cake, creating a hollow interior.
  38. 38Carve out the center of the cake, creating a hollow interior.
  39. 39Carve out the center of the cake, creating a hollow interior.
  40. 40Cover the top with modeling chocolate, trim and blend.
  41. 41Cover the top with modeling chocolate, trim and blend.
  42. 42Cover the top with modeling chocolate, trim and blend.
  43. 43Paint the inside of the geode with purple food coloring.
  44. 44Paint the inside of the geode with purple food coloring.
  45. 45Paint the inside of the geode with purple food coloring.
  46. 46Add the rock candy pieces to the geode, painted side down.
  47. 47Add the rock candy pieces to the geode, painted side down.
  48. 48Add the rock candy pieces to the geode, painted side down.
  49. 49Add some sharp isomalt shards along the edges.
  50. 50Add some sharp isomalt shards along the edges.
  51. 51Add some sharp isomalt shards along the edges.
  52. 52Fill the space between the dark gray modeling chocolate and the rock candy with light gray modeling chocolate.
  53. 53Fill the space between the dark gray modeling chocolate and the rock candy with light gray modeling chocolate.
  54. 54Fill the space between the dark gray modeling chocolate and the rock candy with light gray modeling chocolate.
  55. 55Paint the outside of the cake with different shades of food coloring for a realistic effect.
  56. 56Paint the outside of the cake with different shades of food coloring for a realistic effect.
  57. 57Paint the outside of the cake with different shades of food coloring for a realistic effect.

Ingredients

  • 1 handful isomalt nibs
  • 1 handful isomalt nibs
  • 1 handful isomalt nibs
  • 1 cup water
  • 1 cup water
  • 1 cup water
  • 1 6 inch round cake
  • 1 6 inch round cake
  • 1 6 inch round cake
  • 1 sheet parchment paper
  • 1 sheet parchment paper
  • 1 sheet parchment paper
  • 1 cup melted isomalt
  • 1 cup melted isomalt
  • 1 cup melted isomalt
  • 1 cup green buttercream
  • 1 cup green buttercream
  • 1 cup green buttercream
  • 2 food safe molding putty
  • 2 food safe molding putty
  • 2 food safe molding putty
  • 1 cup gray modeling chocolate
  • 1 cup gray modeling chocolate
  • 1 cup gray modeling chocolate
  • 1 bag rock candy
  • 1 bag rock candy
  • 1 bag rock candy
  • 2 purple food color
  • 2 purple food color
  • 2 purple food color
  • 1 green gel food color
  • 1 green gel food color
  • 1 green gel food color
  • 1 ivory powder food color
  • 1 ivory powder food color
  • 1 ivory powder food color
  • 1 brown powder food color
  • 1 brown powder food color
  • 1 brown powder food color
  • 1 white powder food color
  • 1 white powder food color
  • 1 white powder food color

Equipment

bowlspatula6 inch round cake panparchment papertorchbutter knifezip lock bagsculpting toolspaint brushfood color