Preheat oven to 350°F (175°C) and line an 8x8 inch baking pan with parchment paper.

In a large mixing bowl, whisk together pumpkin puree, eggs, maple syrup, coconut oil, and vanilla extract until smooth.

In a separate bowl, whisk together oat flour, baking soda, pumpkin pie spice, and salt.

Incorporate the dry ingredients into the wet mixture, stirring until just combined.

Pour the batter into the prepared baking pan and level the surface with a spatula.

Bake for 22 to 25 minutes or until a toothpick inserted into the center comes out clean.

Remove from oven and allow the bars to cool completely in the pan on a wire rack.

Slice into 12 uniform rectangular bars and serve.