The adults can nibble these with their Christmas drinks and the children, who love making them, can just nibble them! They will keep crisp in an airtight tin.
Preheat oven to Gas Mark 7/425°F/220°C. Put the grated cheese into a mixing bowl. Sift the flour with the baking powder and paprika into the cheese. Cut the butter into small pieces and rub into the flour and cheese with your fingertips. Add the egg yolks and mix with a wooden spoon to