Step 1

Preheat the oven to 375 degrees F (190 degrees C). Grease cookie sheets.

Step 2

In a large bowl, cream together the shortening and white sugar until smooth. Beat in the eggs one at a time. Stir in the vanilla and pumpkin until well blended. Combine the flour, baking soda, baking powder, salt, cinnamon and nutmeg; stir into the pumpkin mixture. Mix in the chocolate chips. Stir in the walnuts if desired. Drop by teaspoonfuls onto the prepared cookie sheets.

Step 3

Bake for 12 to 15 minutes in the preheated oven, until edges begin to brown. Allow to cool for a few minutes on the baking sheets before removing to wire racks to cool completely.