225g/8oz plain flour
1½ tsp bicarbonate of soda
300g/10½oz soft dark brown sugar
1½ tbsp cocoa powder
75g/2½oz cocoa powder
90ml/3fl oz (or 75g/2½oz if weighed when solid) coconut oil
1 tbsp chopped pistachios, to decorate
½ tsp fine sea salt
50g/1¾oz soft dark sugar
1½ tsp cider vinegar or white wine vinegar
150g/5½oz dark chocolate (minimum 70% cocoa solids), finely chopped
75g/2½oz coconut butter (this is not the same as oil)
1½ tsp instant espresso
1½ tsp instant espresso powder