Ingredients

• For the marshmallow ghosts:

• 3 large egg whites
• 180g caster sugar
• 25g white chocolate, melted
• 5g dark chocolate, melted

• For the brownies:

• 300g good quality dark chocolate, roughly broken up
• 125g unsalted butter
• 200g granulated white sugar
• 100g soft light brown sugar
• 4 large eggs
• 2 tsp vanilla extract
• 125g plain flour
• 1 tsp salt