Preheat the oven to 150˚C and grease a baking sheet.

Cream together the butter and sugar in a mixing bowl. Stir in the remaining ingredients, and knead together to form a stiff dough.

Place in the refrigerator for 15 minutes, then roll the dough out to about 5mm thickness and cut out shapes using a cookie cutter. Transfer to the baking sheet and bake for 8-10 minutes.

Sift the sugar into a large bowl and add the egg white. Using an electric whisk, beat the mixture on high speed for a few minutes. Add the lemon juice and beat again for 5 minutes. Icing the cookies and add decorative additions as desired.