How to Make It
In bowl, beat butter and sugar until smooth. Add pumpkin, egg, and vanilla; beat well. In a separate bowl, combine flour, baking powder, baking soda, cinnamon, and salt. Gradually beat flour mixture into pumpkin mixture. Drop by rounded tablespoonfuls onto greased baking sheets. Bake at 375 for 10-12 minutes until golden brown. Allow cookies to cool.
To prepare frosting, combine brown sugar, milk, and butter in a saucepan. Cook, stirring constantly, for 2 minutes. Remove from heat and let cool completely. Add brown sugar mixture to medium bowl. Stir in vanilla. Using an electric mixer set on low speed, slowly incorporate 1-2 cups powdered sugar until desired consistency is reached. Spread cookies with frosting and decorate as desired. Allow icing to set before packaging cookies.