Preheat oven to 300º. Combine flour, baking soda, salt, and pumpkin pie spice and set aside.
In a large bowl, blend sugars and add butter. Beat until a grainy paste. Add egg, pumpkin, and vanilla extract and beat until fluffy. Add flour mixture and chocolate chips and blend. Drop by rounded tablespoons on ungreased cookie sheet. Bake for 22 minutes. Yields 3 dozen cookies.
Bake