Preheat oven to 325 degrees F (165 degrees C).

Blend softened cream cheese and 1/2 cup butter or margarine. Stir in 1 cup flour and mix well.

Shape 2 dozen-1 inch balls. Place in tiny ungreased muffin pans and press onto the bottom and sides of tins.

To Make Filling: Beat egg, sugar, 1 tablespoon butter, salt, vanilla and nuts until smooth. Fill pastry cups and bake until filling is set, about 25 minutes.