Swedish Meatloaf In Pastry - cooking recipe

Ingredients

Pastry
2 1/4 cups flour
1 teaspoon salt
3/4 cup cold unsalted butter, cut in small pieces
1 egg, cold
1/2 cup sour cream, cold
Filling
4 tablespoons butter
4 ounces fresh mushrooms, finely chopped
3 3 lbs ham (combination of any or all) or 3 lbs veal (combination of any or all)
1/3 cup chopped onion
1/4 cup chopped fresh parsley
1 cup grated swiss cheese
1 egg
2 tablespoons milk

Preparation

Grease the bottom of a 15 1/2 x 10 1/2-inch jellyroll pan with butter.
Pastry:
It is easiest to make this pastry in a food processor. In a small bowl, mix egg and sour cream. In the food processor, pulse the flour and salt until mixed. Add butter; process 15 seconds, until it has the consistency of coarse meal.
With processor running, add egg mixture; process just until dough comes together. If you don't have a food processor, chill a large bowl, mix the flour and salt in the bowl, then cut in butter with a pastry blender or two forks. Stir in egg mixture just until you can form the dough into a ball. Wrap dough in waxed paper; refrigerate for 1 hour.
Divide dough in half. Roll each half into a 14 x 6-inch rectangle. Place one rectangle in prepared pan; set pan and remaining pastry aside.
Filling:
Heat oven to 375\u00b0F Melt butter in a large skillet. Add mushrooms; cook over medium heat for 6 minutes or until slightly colored.
Add ground meat; cook until browned and until liquid in pan cooks away. Place meat mixture in a large bowl. Add onions, parsley, cheese and milk; mix well.
Gather mixture into a ball; place onto dough rectangle in pan. Using your hands, press meat into a narrow loaf shape. Brush edges of dough with egg-milk mixture. Place the second dough rectangle over the meat. Using a fork, press the dough edges together to seal. Brush top of pastry with egg-milk mixture. Prick top with a fork in several places. Bake 45 minutes, until golden brown.
Serve with sour cream on the side.