Make the crust by mixing flour, salt, and cold butter and shortening cut into bits. Mix in a food processor or with a fork until crumbly and a cornmeal consistency. Add 3 to 4 tablespoons of cold water. Mix and then form into a ball, then roll flat. Put in a 9-inch pie plate and chill for one hour.
2. Step
Mix softened butter and sugar until well-blended. Add the sour cream, flour, salt, vanilla and eggs and beat until blended. Stir in sliced apples and cheddar cheese and stir gently to coat. Pour into the prepared pie shell.
3. Step
Bake in a 400°F preheated oven for 30 minutes. (Cover the pie edges with foil or silicone edge covers.)
4. Step
Prepare the topping by mixing the softened butter, flour and brown sugar together with a fork. After the pie is baked for 30 minutes, remove the pie and sprinkle on the streusel topping. Put the pie back in the oven and bake for 15 minutes.
