Steven's Telephone Cake recipe - The Great British Bake Off

Ingredients

• 100g cocoa powder
• 2 tsp instant espresso powder
• 125ml boiling water
• 3 tbsp hazelnut liqueur
• 600g caster sugar
• 200g salted butter, softened
• 1 tsp vanilla
• 6 eggs
• 400g self-raising flour
• 1 rounded tsp baking powder
• a pinch of salt
• 50g unsalted butter, softened
• 150g double cream
• 250g icing sugar
• 1 tsp ground cinnamon
• 1 tsp vanilla bean paste
• 2 tbsp hazelnut liqueur
• 750g red sugar paste
• 150g white sugar paste
• 1 tsp tylo powder
• red and black food-colouring gels
• silver lustre powder
• 1 tsp gin or vodka