Instructions: Pre-heat the oven to 180 C/350 F/gas mark 4.

Sift the icing sugar and flour together. Pour over the butter and egg whites and stir to a paste. Place teaspoons of the paste onto greased baking trays. Using a small palette knife spread the mixture thinly into rounds of about 10cm. It is best not to have more than 4 on a tray. Bake for approximately 5 minutes until the biscuits are golden round the edges.

Remove the biscuits from the oven and immediately roll round the end of a greased wooden spoon to form a tube. The shapes set quickly so you need to work fast. Leave to cool on a wire rack.

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