Pure gold Christmas drip cake 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) For the icing 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) For the chocolate drip 200g white chocolate , chopped or grated For the gingerbread star tree Method Launch step-by-step First, make the sponges. Heat oven to 180C/160C fan/gas 4. Oil and line the base and sides of three 20cm cake tins with baking parchment – if your cake tins are quite shallow, line the sides to a depth of at least 5cm. Mix the flour, baking powder, bica