Chocolate Cake With Fudge Frosting | Donna Hay

Ingredients

• 250g unsalted butter, chopped and softened
• 1⅓ cups (320g) firmly packed brown sugar
• 4 eggs
• 2 cups (300g) plain (all-purpose) flour
• 3 teaspoons baking powder
• ⅓ cup (35g) cocoa powder
• 1 cup (250g) sour cream
• 250g dark (70% cocoa) chocolate, melted and cooled slightly
• 180g dark (70% cocoa) chocolate, finely chopped
• ⅔ cup (160ml) pure cream, hot
• 40g unsalted butter, softened