• 8 oz. ground almonds
• 4 oz. caster sugar
• 4 oz. icing sugar
• few drops almond essence
• 2 egg yolks
• cocoa powder

Mix all the ingredients except cocoa together, and form into small balls. Prick with a knitting needle to simulate the eyes of potatoes, then roll in cocoa powder. Allow to dry on a clean baking sheet.