In a medium bowl whisk together the flour, baking soda, baking powder, salt, and pumpkin pie spice.
1.5 cups all purpose flour, 1 tsp baking soda, 1/2 tsp baking powder, 1/2 tsp salt, 1.5 tsp pumpkin pie spice
In a stand mixer fitted with a paddle attachment, add the eggs, pumpkin puree, sugar, melted butter, and vanilla. Beat on the lowest setting until just combined, do not over mix. Add the sourdough discard to the batter and beat on lowest setting until just combined. (See notes below if you do not have a stand mixer).
1 15 oz can pumpkin puree, 1/3 cup melted butter, 2 eggs, 1 cup white sugar, 1 tsp vanilla