No rolling of the crust baked in a paper bag. Combine flour, sugar, salt, oil, and milk. Mix until well blended. Pat mixture in bottom and sides of a nine-inch pan. Do not roll out. Combine sugar and spices. Toss lightly with sliced apples and pour into unbaked pie shell. Combine flour, margarine and sugar and mix together with fingers until crumbly. Sprinkle over top of pie. Place pie in brown paper bag and seal. Bake at 350 degrees 1.5 hours. NO peeking! Slit sack open with sharp knife. Cool pie on rack. If oven bakes rather hot, reduce to 325 degrees.