
These pies have been made in Lancashire (especially Preston/Chorley/Wigan) for centuries as a response to the ban on meat-eating on Fridays by the Catholic church. The pies were known as Friday pies or Catholic pies. If you want to make vegetarian versions of this, omit the lard from the pastry and add more butter.

225 grams plain (all-purpose) flour
50 grams butter
50 grams lard
1 tsp salt
a few tbsp water
FILLING
3 large potatoes
1 large onion
150 grams butter
to taste salt & white pepper1 beaten egg to glaze the pies