01 - 
                Preheat the oven to 160ºC/320ºF (conventional) and line a 12-cup cupcake tray with 12 liners.
              
              
              
                02 - 
                In a large bowl, combine all-purpose flour, dark brown sugar, baking powder, baking soda, pumpkin spice, and salt.
              
              
              
                03 - 
                In another bowl, whisk together the pumpkin purée, vegetable oil, eggs, and vanilla extract until combined.
              
              
              
                04 - 
                Pour the wet ingredients into the dry ingredients. Mix until no dry flour remains.
              
              
              
                05 - 
                Divide the batter evenly among the cupcake liners. Bake for 23-24 minutes or until a tester comes out clean.
              
              
              
                06 - 
                Cool the cupcakes on a rack. After 5 minutes, remove them from the tin to cool completely.
              
              
              
                07 - 
                If in Europe, press cream cheese with paper towels to remove excess water. Bring butter and cream cheese to room temperature. Sift powdered sugar.
              
              
              
                08 - 
                Using a stand mixer with the paddle attachment, cream the butter and dark brown sugar for 5 minutes on high speed. Scrape down the bowl and mix for another 2 minutes.
              
              
              
                09 - 
                Add the cream cheese and vanilla extract to the butter mixture. Mix for 1 minute.
              
              
              
                10 - 
                On low speed, add the sifted powdered sugar in two parts, mixing thoroughly after each addition. Scrape the bowl and mix on low for 2 minutes.
              
              
              
                11 - 
                Transfer the frosting to a piping bag with a round tip (e.g., Wilton 1A). Pipe the frosting onto the cooled cupcakes. Optionally, decorate with fondant pumpkins or a dusting of pumpkin spice.