Instructions

  1. Beat sour cream and egg together.
  2. Add flour, sugar, salt and vanilla.
  3. Mix until smooth.
  4. Stir in apples.
  5. Bake at 400 degrees for 25 minutes.
  6. Mix the crumb topping ingredients until crumbly.
  7. Remove pie from oven and spread with crumb topping.
  8. Bake 20 more minutes.