Set the oven to 180 degrees. Line a shallow rectangular baking tin with baking paper.
In a medium bowl sift flour, cocoa and baking powder with a good pinch of salt.
Using the electric mixer, beat butter and sugar until smooth and combined.
Melt the chocolate in an aluminum bowl over a small amount of simmering water (should not be touching the bowl). Stir the chocolate at all times then set aside once melted.
Crack the eggs + extra yolk into a small bowl and whisk lightly. Using the electric mixer on a low speed, gradually add the eggs to the butter and sugar mixture. Pour in melted chocolate. Gently fold through the flour being carful not to knock the air out of the mixture.
Pour batter into tray and bake for 30 minutes. Allow brownies to cool before cutting.
Designed & Powered by Web Force 5