Scottish Shetland Shortbread

8 oz Plain (all-purpose) flour
3 oz Castor (superfine) sugar
2 oz Self raising flour
8 oz Butter or margarine, or a half/half mixture
3 oz Cornflour (cornstarch)

Preparation Method:

Melt butter.
Mix dry ingredients.
Add and knead all together.
Pat or roll into baking sheet (to about ½” deep).
Prick over with fork.
Sprinkle with sugar.
Bake at 350F/160C/Gas Mark 4 on bottom shelf of oven until a pale beige colour (15-25 minutes).
Cut into 1″ by 2-3″ strips when taken from oven.