Terry's All At Sea Rum & Raisin Traybake recipe - The Great British Bake Off

Ingredients

• 2 Bramley apples, peeled, cored and chopped
• 250ml cloudy apple juice
• 150g light muscovado sugar
• 1 tbsp cornflour
• 10g unsalted butter
• 70g golden raisins
• 70g raisins
• 60g chopped dates
• 80ml dark rum
• 110g unsalted butter, softened
• 150g caster sugar
• 50g light muscovado sugar
• 2 eggs, beaten
• 125g plain flour
• 125g wholegrain flour
• 2 tsp bicarbonate soda
• 1 tsp ground cinnamon
• ½ tsp unsweetened cocoa powder
• pinch of salt
• 50g chopped walnuts
• 150g double cream
• 150g 70% dark chocolate, roughly chopped
• 50g caster sugar
• 20ml dark rum, plus any rum remaining after soaking the raisins
• 75ml cloudy apple juice
• ½ tsp cream of tartar
• 16 walnut halves
• 60g golden syrup
• 30g caster sugar