Best Scottish Abernethy Biscuits

Best Scottish Abernethy Biscuits.

1 c. flour
1/2 c. butter
3 tbs. sugar
1 tsp. cream of tartar
1/2 tsp. bicarbonate of soda
1 tbs. milk
pinch of salt

Sift flour, salt, bicarbonate of soda, cream of tartar together.
Rub in butter until mixture looks like breadcrumbs.
Dissolve sugar in milk, stir into flour/butter mixture.
Form into stiff dough.
Roll out to a thickness of 1/4 inch.
Cut in squares; prick all over.
Bake in oven at 350 Degrees F for 20 minutes.
Makes about 10 biscuits. Best Scottish Cooking.