20驳/戮辞锄 light brown sugar
1 tbsp unsweetened cocoa powder
10g plain white flour
small pinch salt
20驳/戮辞锄 dark chocolate (minimum 70% cocoa solids), broken into chunks
1 tbsp milk, dark or white chocolate chips (optional)
15g/陆oz unsalted butter
1 tbsp milk
1 scoop vanilla ice cream (optional)