Preheat oven to 350 degrees. Line a baking sheet with parchment paper.
In a bowl of a stand mixer with the paddle attachment, whisk together flour, baking soda, baking powder, salt, and spices.
Add in the oil and brown sugar on medium speed until well combined. Add the pumpkin and vanilla and mix on medium-low until well incorporated.
Add eggs, one at a time, mixing on medium-low, and be careful not to over mix.
Spoon the batter into a large piping bag fitted with a large round tip.
Pipe the batter into ¾ to 1-inch rounds on the parchment paper-lined cookie sheets or use the macaron template as a guide. Leave a little room between cookies as the batter does spread a little.
Bake the whoopie pies for 10 minutes. Once fully baked, the pies should spring back when touched and a toothpick inserted in the center should come out clean.
Remove the pan from the oven and place it on a cooling rack for 10 minutes. Carefully remove the whoopie pies from the pan and transfer them to a wire rack to cool completely before filling.
To assemble the whoopie pies, place a dollop or swirl of maple cream cheese frosting on the flat side of one pie and then top with the flat side of another whoopie pie. Gently press together to create a sandwich.
Place the assembled whoopie pies in the refrigerator for 30 minutes to an hour to chill, allowing the frosting to set.