Rub the fat in to the flour, add the cheese, which must be finely grated, salt and pepper. Mix to a stiff paste with cold milk. Roll dough to about 1/8 inch in thickness. Cut in to rounds of about the size of a small tumber or shot glass, prick with a fork to prevent rising and bake in a hot oven for 7-10 minutes.
The biscuits should be a light golden brown colour.
Don't leave the oven with these. They can cook VERY quickly.