Preheat oven to 350 degrees. While the oven is preheating, mix together the shortening, sugar, egg, and pumpkin until well combined. Then add flour, baking soda, cinnamon, cloves, and salt. Drop by tablespoon, or i do a heaping tablespoon, onto greased cookie sheet, bake for 10 min. When you are done baking the cookies, it will be time to make the yummy frosting! In a small saucepan, combine the butter, milk, and brown sugar. Cook until melted(DO NOT BOIL) Let cool; then add the powder sugar and vanilla, mix with a mixer until well combined. And your done! So yummy, and so easy to make!