1. Beat the butter or margarine with the sugar.
2. Add eggs, one at a time, and then add the vanilla extract, beating after each addition.
3. Add flour and blanched almonds. Pour batter into prepared pie shell and smooth out. Sprinkle with cinnamon.
4. Peel pears and slice them into thin wedges. Place in a fan-like design over the filling. Sprinkle with vanilla sugar. Bake for 1 hour.