Mincemeat: Mix everything together either by hand or, if you desire a smoother texture, in a food processor. Pastry: Rub shortening into the flour until the mixture resembles fine breadcrumbs. Add enough flour to enable the pastry to hold together. Roll out pastry & cut into 12 cm circles. Press circles into the bottom of lightly oiled baking tins. Fill with mincemeat & cover with another pastry circle. Press down at the edges & make a small steam hole in the top. Bake for 10 minutes at 400F, 200 °C Gas 6. These pise can be frozen before baking either in the tin or remove from tin once they are solid. Mincemeat will keep for 1 week covered in the fridge. Makes 36 pies