Preheat over to 350 degrees and spray 8 x 11 baking dish with non-stick cooking spray.
In a large bowl whisk together oat flour, baking soda, baking powder, salt, and spices. Set aside.
In a separate large bowl, whisk together pumpkin, brown sugar, vanilla extract, oil and applesauce and mix until smooth and creamy.
Slowly whisk in oat flour until combined.
Gently fold in chocolate chips
Pour batter into pyrex dish
Bake for 15-25 minutes. As ovens vary I suggest checking your bars at the 10 minute mark and every 5 minutes after that. Insert a knife to test doneness. The knife should come out clean.
Once done allow to cool for 10 minutes on a wire baking rack.