Whisk together flour, baking powder, salt, pumpkin pie spice, and brown sugar in a large mixing bowl.
Add pumpkin puree to the mixing bowl with dry ingredients.
Add milk, and whisk until incorporated.
Heat skillet or griddle over medium low heat.
Add butter or oil to pan to prevent pancakes from sticking.
Using 1/4 cup measuring cup, add batter to the pan. Be careful to not overcrowd the pan.
Let cook until bubbles start to appear on the top of the pancakes, and the bottoms are golden brown.
Flip, and continue to cook until bottom is golden brown.