Chocolate cake

Ingrediënten

• 300g dark chocolate (around 65%), roughly chopped
• 25g cocoa powder
• 150ml hot coffee or water
• 100g unsalted butter, well softened
• 2 tbsp vegetable oil
• 150g soured cream
• 250g golden (or regular) granulated sugar, plus 2 tbsp for sprinkling
• 3 eggs
• 175g plain flour
• ½ tsp fine sea salt
• 1½ tsp baking powder
• ½ tsp bicarbonate of soda
• Cinnamon rum cream (optional)
• 250ml double cream
• 40g icing sugar
• 1 tsp ground cinnamon
• 1½ tbsp dark rum (or 2 tsp vanilla bean paste or extract)