Step 1: Preheat Oven u0026 Prepare Baking Sheets: Preheat oven to 350°F (175°C). Line two baking sheets with parchment paper.
Step 2: Mix Dry Ingredients : In a medium bowl, whisk together flour, baking powder, baking soda, salt, cinnamon, ginger, nutmeg, and cloves. Set aside.
Step 3: Prepare Wet Ingredients : In a large bowl, cream butter and sugar until light and fluffy. Beat in egg and vanilla extract. Mix in pumpkin puree until smooth.
Step 4: Combine Wet and Dry Ingredients : Gradually fold dry ingredients into wet mixture until just combined. The batter will be slightly thick but scoopable.
Step 5: Pipe or Scoop Cakes : Using a cookie scoop or piping bag, drop tablespoons of batter onto prepared baking sheets, spacing about 2 inches apart. Bake for 12–15 minutes, until tops are set and lightly springy. Cool completely on wire racks.
Step 6: Prepare Cream Filling : In a medium bowl, beat softened butter until smooth. Add powdered sugar and vanilla extract, mixing until combined. Fold in marshmallow fluff until creamy and fluffy.
Step 7: Assemble Whoopie Pies : Spread or pipe cream filling onto the flat side of one cake. Top with another cake, pressing gently to sandwich. Repeat for remaining cakes. Optional: decorate with sprinkles, chocolate drizzle, or dusting of powdered sugar.
Step 8: Serve : Serve immediately or store for later. Perfect with milk, coffee, or hot chocolate.