Step 1

To make the pastry, mix the flour and salt in a large bowl, add the lard and butter and rub in with your fingertips until the mixture resembles breadcrumbs. Stir in enough water to make a fairly firm dough, then knead briefly until smooth. Shape into a ball, wrap in cling film and chill for at least 30 minutes. For the filling, slice the onion finely; cut the swede and potato into small, thin strips; keep each separate. Cut the beef into small, thin pieces and divide into 5 portions. Heat the oven to 200°C/Gas

Step 2

Divide the pastry into 5 equal pieces. Roll each out on a lightly floured surface to a 3mm thickness and cut out a 24cm circle, using a plate as a guide. Scatter a scant layer of swede on the pastry semi-circle, leaving a 1cm border. Add a similar layer of potato, season lightly and top with some onion. Repeat the swede and potato layers, seasoning as you go. Check the pasty will close, then add the beef. Add a final layer of onion, season and dot with butter. Brush the pastry border with a little beaten egg, then close the lid of the pasty, making sure that the edges meet. Press together firmly and then crimp the edges together by pinching all the way round between your thumb and forefinger. Fill and seal the remaining circles of pastry in the same way. Place the pasties on 2 baking trays and cut 2 small slits in the middle of each one. Brush the pastry with beaten egg. Bake for 20 minutes, then lower the oven setting to 160°C/Gas 3 and bake for 30 minutes longer. Best eaten hot from the oven.