Stir flour. baking powder and salt together. Cut in the margarine and oil with a pastry knife or 2 forks; knead lightly until pastry forms a ball. Flatten, wrap and chill 1 hour. Flour a pastry board and roll as thin as possible with a floured roller. Gently fit pastry into an 8-inch nonstick pie pan which has been liberally sprayed with cooking spray. Stir remaining ingredients, EXCEPT sweetener, together, spoon into pie shell. Cover mixture with another smaller inverted pie pan or a circle of aluminum foil cut to fit. Bake in preheated 375 oven just until crust is golden and apples are tender. Remove from oven; uncover filling and cool 5 minutes or more, then sprinkle the filling evenly with no-calorie sweetener. Serve warm or cool. Makes 8 servings, 145 calories each. NOTES : CTLINDA Posted to RecipeLu by [email protected] on Jan 23, 1998.