Liam's 2 in 1: It's Gotta Be Fun recipe - The Great British Bake Off

Ingredients

• 135g caster sugar
• 130g plain flour
• 25g cocoa powder
• pinch of salt
• ½ tsp bicarbonate of soda
• 90ml strong coffee, cooled
• 45ml buttermilk
• 45ml soured cream
• 75ml vegetable oil
• 1 large egg
• ½ tsp vanilla extract
• 250g salted butter
• 100g Biscoff spread
• 250g caster sugar
• 4 eggs
• 250g self-raising flour
• ¼ tsp baking powder
• 2 tbsp whole milk
• 100g unsalted butter
• 300g icing sugar
• 1 egg white
• 225g icing sugar
• 1 tsp lemon juice
• 250g red sugar paste
• 250g green sugar paste
• 250g yellow sugar paste
• gold lustre powder
• 1 tsp gin or vodka
• red and green metallic food paint