In a large mixing bowl, whisk flour, sugar, salt, pumpkin pie spice, ground cinnamon, baking powder, baking soda, and salt. Set aside
Melt 3 tablespoons of butter in a medium-sized microwave-safe bowl. Whisk in eggs, pumpkin purée, and yogurt.
Gently fold the pumpkin mixture into the flour mixture until just combined. You do not want to over-mix the batter.
Let the batter sit for five minutes while you heat up your skillet. (The batter is ready when its appearance is puffy looking with small bubbles forming).
Melt the remaining 1 tablespoon of butter in a large skillet over medium-low heat.
Once the butter has started to bubble, scoop 1/3 cup of the batter into the skillet. Flatten slightly with a soft silicone spatula or flipper.
Cook on low heat for 3 to 4 minutes on each side (or when the edges of the pancake start to brown) Flip and repeat on the other side.
Keep pancakes warmed in an oven set to 200° F while you finish cooking the rest.
Serve with crushed pecans and whipped cream