Pure gold Christmas drip cake - Good Food Middle East

Ingredients

• 225ml vegetable oil, plus extra for the tin
• 375g plain flour
• 3 tsp baking powder
• 1½ tsp bicarbonate of soda
• 375g golden caster sugar
• 1½ tsp mixed spice
• ½ tsp fine salt
• 300ml buttermilk
• 1½ tsp vanilla extract
• 3 large eggs
• 5ml red food colouring gel, we used Dr Oetker (optional)
• 250g pack slightly salted butter, at room temperature
• 900g icing sugar
• 1 tsp vanilla extract
• 500g tub full-fat soft cheese
• edible gold spray(optional)
• 200g white chocolate, chopped or grated