Combine dry ingredients; cut in Crisco. Place egg yolks in measuringg cup and stir with fork until blended. Stir in enough very cold water to make just a cupful. Sprinkle gradually over dry ingredients; toss with fork to make soft dough. Roll out as usual. Makes pastry for three 9-inch 2-crust pies or one jelly roll pan (15x10-inch what I use) For this pie roll out 1/2 the pastry and line the jelly roll pan. Put in filling. Roll remaining pastry and place on top., sealing and crimping edges, Brush with milk, sprinkle with a little granulated sugar and cut a few vents here and there or prick with a fork.
When cutting up the apple - cut them into a pan with cold water that has about 1 teaspoon of salt and stir to dissolve salt. This will keep the apples from turning brown and keep them crisp.
Drain apples and place in a large bowl or put back into the previous pan. Sprinkle lemon juice on apples. Combine remaining dry ingredients and mix with the apples. Spread apples evenly in pastry lined pan. Dot with butter pats. Top with remaining crust. After crimping and venting top of crust, brush with milk and sprinkle on the sugar and a little cinnamon , if desired. Bake in a 400^ degree oven for 10 minutes. Then turn down the oven to 350^ and continue baking for 30-35 minutes or until apples become juicy. When cool: drizzle with:
1 cup powdered sugar and 2 Tablespoons of milk mixed well. Cut into squares to serve with whipped cream or ice cream if desired.. This is the best darn pie crust ever. Very old.