article_snippet.sent: Add the icing sugar and grind to a really fine mixture, then tip into a mixing bowl.
article_snippet.sent: Lightly whisk 1 egg white with a fork and stir in.
article_snippet.sent: Using your hand, knead a really fine mixture, then tip into a mixing bowl until smooth.
article_snippet.sent: You may not need all the egg white take care as it can become too wet very quickly .
article_snippet.sent: Sift the self-raising flour and finely grate the nutmeg and set aside .
article_snippet.sent: Beat the margarine and sugar until light and fluffy; you can use a wooden spoon or an electric whisk or mixer.
article_snippet.sent: Then add all the eggs including egg yolk, along with the self-raising flour and beat until well combined .