Apple Crumble Pie

Filling:
5-7 large apples (about 7 cups sliced)
2 T. lemon juice
1/2 cup sugar
2 T. flour
1/4 tsp. nutmeg
1/2 tsp. cinnamon
1/4 tsp. salt, optional

Topping:
1/2 cup flour
1/2 cup sugar
1/2 cup butter

Prepare pastry for 9" pie pan.  Flute edges.  Pare and slice apples.  Place in a large bowl and sprinkle with lemon juice.  Mix 1/2 cup sugar, 2 T. flour and spices in cup.  Sprinkle over apples and toss.  Spoon into prepared shell.  Combine 1/2 cup sugar and flour.  Cut in butter with pastry blender.  Sprinkle over apples.  Place pie plate on cookie sheet for easy handling and cover pie loosely with foil.  Bake in hot oven at 450 degrees for 45 minutes.  Uncover and bake another 15 minutes, until top is golden and filling is set.