Heat the oven to 180C (160C fan oven), 350F, Gas 4. Line a 23cm (9inch) square tin with baking paper.
Melt butter and chocolate over simmering water and mix till smooth.
In a large separate bowl mix the cocoa powder, flour, baking powder and sugar.
Then add the chocolate mixture to this.
Beat the eggs and mix in thoroughly till you have a silky consistency. Then add a good squeeze or a tablespoon of Golden Syrup.
Add chocolate chips.
Then add the chopped toasted pecan nuts.
Pour the mixture into the prepared tin and put the tin in the oven.
Bake for around 25 minutes until well risen and firm to the touch.
Allow them to cool in the tin, then cut into squares.
