Best Scottish Food, Oatmeal Pastry

Oatmeal Pastry. This is an excellent pastry for fruit tarts. It makes enough to line an eight inch (20 cm) flan ring.
3 ounces (75 g) of self-raising flour.
3 ounces (75 g) of fine oatmeal.
2 ounces (50 g) of butter.
1 ounce (25 g) of lard.
A half ounce (15 g) of caster sugar.
A little cold water to mix.
Sift the flour into a bowl and stir in the oatmeal.
Rub in the lard and butter until the mixture resembles breadcrumbs.
Stir in the sugar.
Add enough cold water to make a fairly stiff dough.
Leave to rest for 30 minutes.
Roll out the dough on a floured board.
Use to line an eight inch (20 cm) flan ring.
Bake blind in a hot oven for ten minutes to set the pastry before adding the filling. Oven: 400 degrees F/200 degrees C. Gas Mark 6.