In a medium bowl, thoroughly whisk together the all-purpose flour, baking powder, ground cinnamon, ground nutmeg, and salt until evenly mixed. Set this bowl aside for later use.
In a separate large bowl, combine the pumpkin puree, packed brown sugar, large egg, milk, vegetable oil, and vanilla extract. Mix these ingredients until they are smooth and well blended.
Gradually add the dry ingredient mixture to the wet mixture, stirring gently until just combined. Be careful to avoid overmixing; it's perfectly fine if there are a few lumps in the batter.
In a small bowl, mix together the granulated sugar and 1 tablespoon of ground cinnamon to create your cinnamon swirl mixture.
On medium heat, preheat a non-stick skillet or griddle. Lightly grease the surface with cooking spray or a small amount of oil to prevent sticking.
Pour about 1/4 cup of pancake batter onto the skillet for each pancake. Immediately drizzle some of the cinnamon swirl mixture over the batter in a creative swirling pattern. Use a toothpick or the back of a knife to gently swirl the cinnamon mixture into the pancake batter.
Allow the pancakes to cook for approximately 2-3 minutes, or until you start to see bubbles on the surface and the edges appear to be set. Carefully flip the pancakes and cook for an additional 2 minutes, or until they are golden brown on both sides.
Continue with the remaining batter and cinnamon swirl mixture, making sure to grease the skillet as needed for each batch.
Serve the pancakes warm, adorned with maple syrup, a dollop of whipped cream, and toppled with some additional pumpkin seeds if you desire.
Notes
Serve warm with maple syrup and whipped cream for an extra treat.