I don't recall that my grandmother made any cookies especially for Christmas, but my mother has always made shortbread. As I was growing up I seem to recall that the shortbread was mainly at Christmas, but nowadays Mum makes it all year. She still uses the same recipe she used when I was little.
Here is her recipe:
Ingredients: Butter – 8 ozs (250 gms)
Plain Flour – 10½ ozs (330 gms)
Icing Sugar – 3½ ozs (110 gms)
Cornflour – 2 ozs (65 gms)
Vanilla – ½ tsp (a dribble!)
Salt - pinch (optional)
Method: Cream butter and sugar. Add vanilla. Work flours in until a pliable paste. Flatten out (do NOT roll) to 3/8" (1cm) thickness. Cut into pieces and bake in a moderate oven (1800) for 20 – 25 minutes.
Note: To make good shortbread you must knead the dough till it comes clean from your hands.
It is beautiful shortbread! Mum often gives it as a gift to friends and relations.