Sift together flour, baking soda, baking powder, pumpkin pie spice, ground cinnamon, and salt. Set aside.
In a separate bowl, beat the eggs until foamy. Then, beat in the buttermilk, pumpkin puree, melted butter, and granulated sugar.
Add the dry ingredients and mix until just moistened.
Heat a skillet over medium heat or an electric grill to medium. Brush with vegetable oil. Use 1/3 cup of batter for each large pancake or 1/4 cup for small pancakes.
Allow the pancakes to cook until the bubbles on top start to pop and the edges are dry. Then, flip the pancakes over to finish cooking.
Repeat with the remaining batter.
Video
Notes
Store cooled pancakes in the fridge for 2-3 days in an airtight container or ziptop bag with parchment paper between layers. Or store them in the freezer for up to two months.