Pork and Apple Pie

 I found this recipe a few weeks ago on a Sunday afernoon . I had two lovely pork fillets in the fridge and some apples.  This recipe is adapted from the Timelife Good Food Pork cookbook.
Ingredients
One quantity of shortcrust pastry make with 150gm flour and  75 gm of unsalted butter.
1 pork fillets thinly sliced across.
2-3 apples, cored, peeled and cut into wedges around 1 cm in width.
1 onion finely chopped
1 tbs butter
sage (4-6 leaves)
1/2 - 3/4 cup of white wine or cider
salt & pepper