Chocolate Fudge & Blackberry Cake

Ingredients

• 270g plain flour
• 65g cocoa powder
• 300g caster sugar
• 1 1/2 tsp baking powder
• 1 1/2 tsp bicarbonate of soda
• 1/4 tsp salt
• 80g unsalted butter, melted
• 200ml milk
• 2 eggs
• 1 tsp vanilla
• 160ml hot coffee (or hot water)
• 4-6 tbsp kahlua (coffee liqueur) to soak, optional
• 150ml light brown sugar
• 60g cocoa powder
• 60g dark chocolate
• 75g unsalted butter
• 20g golden syrup
• pinch flaky sea salt
• 100ml hot water
• 120g blackberries, fresh or frozen
• 60g caster sugar
• zest of 1 orange, finely grated
• squeeze of orange juice
• ½ tsp cinnamon
• ¼ tsp ground cardamom
• 1 tsp vanilla extract
• 150g mascarpone, cold
• 2 ½ tbsp icing sugar
• 100ml double cream