Perfect shortcrust

1) Dice the butter and return it to the refrigerator while you prepare the flour mixture

Place the flour, salt, and sugar in the bowl of a food processor fitted with a steel blade and pulse a few times to mix. <p>

2) Add the butter and shortening

Pulse 8 to 12 times, until the butter is the size of peas

With the machine running, pour the ice water down the feed tube and pulse the machine until the dough begins to form a ball. <p>

3) Dump the dough out on a floured board and roll into a ball

Wrap in cling film and refrigerate for 30 mins. <p>

4) Cut the dough in half

Roll each piece on a well-floured board into a circle, rolling from the centre to the edge, turning and flouring the dough to make sure it doesn't stick to the board. <p>

5) Fold the dough in half, place in a pie dish, and unfold to fit the dish

Repeat with the top crust after filling the pie.