Add the dry ingredients to the large bowl: 1 & 1/2 cups flour, 1 tbsp baking powder, 1/2 tsp baking soda, 1/2 tsp corn starch, and 1 tbsp pumpkin pie spice. Stir it just until it's mixed well, try not to over-mix too much.
Heat a non-stick griddle or large pan onto medium heat. Drop 1/4 cup amounts of batter onto the griddle/pan for each pancake. Once the pancakes start to get dry around the edges and several bubbles have formed give them a flip. Cook the other side of the pancakes for another 2-3 minutes.
Notes
*Pumpkin Pie Spice consists of cinnamon, ginger, cloves, nutmeg, and cardamom. Here is a recipe for it in case you're unable to find it: Homemade Pumpkin Pie Spice.