Cream together the shortening with the brown sugar.
Mix into the creamed mixture the egg, sour cream, and vanilla.
Melt HALF(1 1/2 cups) of the chocolate chips in the microwave (in 20 second intervals, stirring in between, until almost melted, then stop. It will continue melting)
Add to the creamed mixture.
In separate bowl, mix flour, cinnamon, salt, baking powder, and baking soda. Add to the creamed mixture, stirring until smooth.
Fold in nuts and remaining(1 1/2 cups) chocolate chips (or can substitute peanut butter chips instead). Chill dough for about 1/2 hour.
Preheat oven to 350 degrees. Place heaping tsps of dough on greased cookie sheets and bake for 10-12 mins, or just until set up. Do not overbake, cookies will still be a bit soft because of all the chocolate. Let cool for a few mins on the cookie sheet before placing on cooling racks. Wrap these babies in pretty containers and deliver to your friends with a carton of milk! They will love you!