Preheat oven to 350 degrees. Spray a half sheet baking pan with non stick baking spray.
Whisk eggs. Add buttermilk, pumpkin puree, vanilla, and oil. Whisk together.
Add pumpkin pie spice, flour, sugar, brown sugar, baking powder, baking soda, and salt to wet ingredients. Stir until combined. Batter may have little lumps and that's okay.
Pour pancake batter into greased baking sheet.
Sprinkle any desired toppings over batter.
Bake for 15-18 minutes.
Cut into squares and serve warm with hot maple syrup!
Leftovers can be refrigerated.