
The secret to a good cheese and onion pie is simplicity. No herbs, no potatoes... just cheese and onion
For the pastry, put the flour, butter and a pinch of salt in the food processor; pulse until it looks like breadcrumbs. Add 5-6 tablespoons of cold water, pulsing until it clumps into a ball. Wrap in clingfim; chill for at least 30 minutes.