Whisk together the flour, cinnamon, nutmeg, ginger, and salt in a large bowl until well combined, releasing a warm, spicy aroma.
In a separate bowl, beat the eggs then stir in the pumpkin, buttermilk, melted butter, and maple syrup until smooth and velvety, with a rich, inviting color.
Pour the wet mixture into the dry ingredients and gently fold together with a spatula until just combined. The batter should be slightly lumpy but well incorporated, and it will thicken as it rests.
Let the batter rest for about 5 minutes; this allows the flour to fully hydrate and the mixture to become slightly fluffier.
Preheat a non-stick skillet or griddle over medium heat until it shimmers slightly and a drop of water dances when flicked onto the surface.
Pour about 1/4 cup of batter onto the hot surface for each pancake, spacing them apart to allow room for flipping.
Cook each pancake until bubbles form on the surface and the edges look set, about 2-3 minutes. The bottom should be golden brown and crisp.
Carefully flip the pancakes with a spatula and cook for another 2 minutes until the second side is also golden and cooked through.
Transfer the cooked pancakes to a warm plate, stacking them as you go. Cover lightly with a towel if not serving immediately.
Serve the pumpkin spice pancakes hot, drizzled with additional maple syrup, and topped with a dusting of cinnamon or whipped cream if desired.