Combine crumbs, pecans and butter. Press over bottom and up sides of 9-inch pie pan. Refrigerate.
Heat oven to 375°F.
Blend flour, sugar and butter together with fingertips until mixture is crumbly. Stir in pecans.
Whisk sour cream, sugar, egg, rum extract, vanilla, flour and salt in bowl. Add apples and raisins. Spoon into prepared pie pan; smooth top. Sprinkle with topping.
Bake in 375°F oven 50 to 55 minutes, until apples are tender. If crust browns too quickly, loosely cover with foil. Serve at room temperature.