Ingredients

Steps

• Preheat the oven to 170°C.
• Line a 30x20x3.5cm tin with buttered greaseproof paper.
• Melt the plain chocolate and butter in a bowl over a pan of simmering water.
• Sieve the flour and baking powder into a separate bowl.
• Stir sugar into the melted chocolate mixture and remove from heat.
• Add eggs and vanilla essence to the chocolate.
• Fold in the flour, nuts, and chocolate chunks.
• Pour the mixture into the tin and bake for 20-25 minutes.
• Cool in the tin before removing and cutting into squares.