Cocoa Crumbs

• 100 g (3½ oz) cocoa powder
• 40 g (1½

Preheat the oven to 150°C (300°F/Gas 2).

Sift the cocoa into a bowl. Add the sugar and salt and combine well. Add the butter and egg whites and mix to a dough. Roll the cocoa dough into a sausage shape, wrap tightly in plastic wrap, and freeze for 6 hours.

Place a silic