Start by creaming the shortening and sugar together add the pumpkin and mix.
Add the egg, vanilla and cinnamon and mix.
Add your dry ingredients and mix.
Scoop on to baking sheet and bake at 350 for 12 to 15 minutes or until done.
While cookies are baking start making your frosting.
Add brown sugar and powdered sugar to melted butter and stir.
Add vanilla and milk and mix until blended.
Let cool for 2 to 3 minutes and scoop a small spoon full on each cookie while still warm.