01 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper.
02 - Combine flour, brown sugar, and salt in a bowl. Cut in cold butter with a pastry blender or fork until crumbly. Press mixture firmly into the bottom of the prepared pan.
03 - Bake crust for 10 minutes.
04 - Whisk together pumpkin puree, maple syrup, brown sugar, eggs, pumpkin pie spice, vanilla, and salt until smooth.
05 - Pour filling over the pre-baked crust and spread evenly.
06 - Mix flour, brown sugar, cinnamon, salt, and melted butter until crumbly. Sprinkle evenly over the pumpkin mixture.
07 - Bake for 30 minutes, or until the center is set and the topping is golden.
08 - Cool completely in the pan, then lift out and cut into bars.