Pastry Ingredients
300 gms plaint flour
pinch salt
185 gm unsalted butter, chilled, cut into 1cm pieces
1 egg
1/2 cup sour cream
butter for greasing tray
Filling Ingredients
Extra Virgin olive oil or butter for fying (around 2 tbs of )
125 gm (approx) finely chopped mushrooms
250gm-300gm lean minced beef
1 large onion, finely chopped
1/2 cup finely chopped flat leaf parsley
3/4 cup grated cheddar cheese
1/4 cup milk
1 egg combined with 2 tbs milk
Method
Sour Cream Pastry
- Sift flour and salt together.
 - Rub in butter until the mixture resembles coarse breadcrumbs. (Alternatively you can use a food processor, but after this point, return the mixture to a large bowl.)
 - In a separate bowl, mix together egg and sour cream.
 - Make a well in centre of flour mixture and pour in egg & sour cream mixture.
 - Work dough gently and pull together into a pliable ball. (Do not over knead).
 - Cover in plastic wrap and place in refrigerator.
 
Filling
- Melt butter or heat olive oil, and sautee onions for 5 minutes.
 - Add mushrooms and continue to saute for another 5 minutes.
 - Add meat and cook cook for around 6 to 8 minutes.
 - Put mixture into bowl.
 - When mixture is cool, add parsley cheese and milk.
 
Putting it together.
- Divide pastry in half.
 - Roll out one piece into a rectangle, approximately 15 cm by 30-35 cm, and place on buttered jam roll tin (or line with baking paper).
 - Gather meat mixture into ball and place in centre of dough, to resemble a log. Brush water along edges.
 - Roll out the second piece of pastry so it is a big bigger than the first and lay over the mixture.
 - Brush pastry with egg and milk mixture. Trim.
 - Gather remaining pastry, roll out and cut into 1 cm strips.
 - Make a lattice trim on pastry.
 - Pinch edges together.
 - Prick the top of the loaf in several places.
 - Brush top again with egg and milk mixture.
 - Cook in oven, set at 180 degrees celsius for around 45 minutes.
 - Allow to cool a bit ans serve with sour cream.