How to Make It
To prepare the topping, weigh or lightly spoon 1 ounces (about 1/4 cup) flour in a dry measuring cup; level with a knife. Combine flour, brown sugar, and 2 tablespoons butter in a food processor; pulse 10 times or until crumbly. Transfer topping to a bowl; cover and chill.
To prepare crust, weigh or lightly spoon 6 ounces (about 1 1/4 cups) flour in dry measuring cups; level with a knife. Combine flour and 1/4 teaspoon salt in a food processor; pulse 2 times or until combined. Add 3 tablespoons butter and shortening; pulse 4 times or until mixture resembles coarse meal. With processor on, add 3 tablespoons water through food chute, processing just until combined (do not form a ball). Press mixture gently into a 4-inch circle on plastic wrap; cover and chill 15 minutes. Slightly overlap 2 sheets of plastic wrap on a slightly damp surface. Unwrap dough, and place on plastic wrap. Cover with 2 additional sheets of overlapping plastic wrap. Roll dough into an 11-inch circle. Freeze dough 5 minutes or until plastic wrap can be easily removed.
Preheat oven to 375°.
Discard top 2 sheets of plastic wrap; let dough stand 1 minute or until pliable. Fit dough, plastic-wrap side up, into a 9-inch pie plate coated with cooking spray. Discard plastic wrap. Press dough into bottom and sides of pan. Fold edges under; flute.
To prepare filling, combine granulated sugar and cornstarch in a bowl; stir with a whisk. Add apples; toss to combine. Arrange apple mixture in crust, mounding slightly in the center. Bake at 375° for 25 minutes. Remove from oven; sprinkle evenly with topping. Bake at 375° for 25 additional minutes or until golden. Cool on a wire rack 20 minutes.
To prepare sauce, combine caramel syrup and salt. Slice pie into 12 wedges, and serve with sauce.