In a deep bowl, combine the flour and salt. Warm the lard, milk and water in a saucepan in moderate heat, and stir until the lard melts. Beat the mixture, a few tablespoons at a time, into the flour, and continue to beat until the dough can be gathered into a compact ball.

On a lightly floured surface, knead the dough for 2-3 minutes by pressing it down, pushing it forward, and folding it back on itself until it is smooth and elastic. Again, gather it into a ball. Place it in a bowl and drape a dampened kitchen towel over it. Let the dough rest for 30 minutes before using.

Pre-heat oven to 350 degrees.

Using a pastry brush coat the bottom and sides of a 10x5x4 inch loaf mold with butter. Set aside. In a large bowl, combine the veal, ham, parsley, brandy, stock, lemon juice, peel, sage, salt and pepper. Toss the ingredients about with a spoon until thoroughly mixed.

Break off about ⅓ of the hot-water pastry and set it aside. On a lightly-floured surface, roll out the remaining pastry into a rectangle about 20" long, 10" wide and ¼" thick. Drape the pastry over the rolling pin, lift it up, and unroll it slackly over the mold. Gently press the pastry into the mold. Roll the pin over the rim to trim off the excess pastry.

Spoon enough of the veal and ham mixture into the pastry shell to fill it a little less than half full. Arrange the hard-cooked eggs in a single row down the center of the mold and line up the pickled walnuts, if you are using them, on both sides of the eggs. Cover the eggs with the remaining meat mixture, filling the shell within an inch of the top.

Roll the reserved pastry into a 4x13 inch rectangle ¼" thick. Lift it up on the pin and drape it over the top of the mold. Trim off the excess with a small knife, and with the tines of a fork or your fingers, crimp the pastry to secure it to the rim of the mold. Then cut a 1" round hole in the center of the pie. Roll out the scraps of pastry and cut them into leaf and flower shapes. Moisten their bottom sides with the egg and cream mixture and arrange on the pie. Brush the entire surface with egg and cream mixture.

Bake the pie in the middle of the oven for 2 hours or until the top is a deep golden brown. Remove from the oven and cool for 15 minutes.

Meanwhile, in a 1 to 1 ½ quart saucepan, sprinkle the gelatin over 2 cups of cold chicken stock and let it soften for 2 minutes. Then set the pan over low heat and cook, stirring constantly until the gelatin dissolves completely. Pour the gelatin through a funnel into the opening of the pie.

Cool the pie to room temperature, then refrigerate it for at least 6 hours, or until the aspic is set. Ideally the pie should be removed from the refrigerator about 30 minutes before being served.

To unmold and serve the pie, run the blade of a sharp knife around the inside edges of the mold and dip the bottom of the mold in hot water. Wipe the mold dry, place an inverted serving plate over it, and grasping mold and plate together firmly, quickly turn them over. Turn the pie over and serve, cut into ½-inch thick slices.