• 

  jelly powder (packet), lime green flavoured

  85 g
• 

  unsalted butter cut into pieces and softened, plus extra to grease

  320 g
• 

  caster sugar

  280 g
• 

  eggs room temperature

  6
• 

  self-raising flour

  80 g
• 

  plain flour

  220 g
• 

  natural vanilla extract

  1 tsp
• 

  full cream milk

  40 g

Chocolate Vienna cream

• 

  icing sugar

  220 g
• 

  cocoa powder

  20 g
• 

  unsalted butter cut into pieces (2 cm) and room temperature

  125 g
• 

  milk room temperature

  40 g

Decorating the cake

• 

  chocolate finger biscuits

  300 g
• 

  lolly musk sticks

  2
• 

  liquorice straps

  50 g
• 

  lollies assorted to decorate (see Tips)