Apple Crumb Pie recipe.

Ingredients
Pastry for a single-crust 9-inch pie
6 cups chopped, peeled tart apples
2 tablespoons butter, melted
2 tablespoons sour cream
4 teaspoons lemon juice
1/2 cup sugar
1 tablespoon all-purpose flour
1/2 teaspoon ground cinnamon
1/2 teaspoon ground nutmeg
1/2 cup all-purpose flour
1/2 cup sugar
1/4 cup cold butter

Directions
Line a 9-in. pie plate with pastry; flute edges. In a large bowl, combine the apples, butter, sour cream, lemon juice, sugar, flour, cinnamon and nutmeg. Spoon into pastry shell. For topping, combine flour and sugar in a bowl; cut in butter until mixture resembles coarse crumbs. Sprinkle over filling.
Bake at 375 degrees F for 45-50 minutes or until the filling is bubbly and the apples are tender. Cool on a wire rack.