Mix together the flour and salt in a
bowl, then rub in the lard and butter or margarine until the mixture
resembles breadcrumbs. Sprinkle the water evenly over the mixture,
then mix it in with a round-bladed knife until the pastry begins to
form large lumps. Press together gently with your fingers until the
pastry forms a ball. Roll out on a lightly floured surface until
smooth, but do not over-handle. Wrap in clingfilm (plastic wrap) and
chill for 30 minutes before use.