Preheat oven to 350 degrees and lightly grease cookie sheets.
In a bowl, mix together and set aside the flour, baking soda, salt and cinnamon.
In a bowl, using a mixer, cream together the shortening, sugar, egg, vanilla, and pureed pumpkin. Add flour to creamed mixture and stir well.
Drop by small scoop or spoon onto prepared cookie sheet. Bake in preheated oven for 12 to 15 minutes. Cool on wire rack. When cool, place your favorite icing between two cookies and dust lightly with powdered sugar. Makes 2 dozen gobs. Enjoy!