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Pumpkin Pie Crumble Bars – Easy Fall Dessert Recipe

Pumpkin Pie Crumble Bars are a cozy fall dessert made with a buttery oat crumble base, a smooth spiced pumpkin filling, and a golden crunchy topping. Perfect for holiday gatherings, bake sales, and festive fall baking.

Ingredients

Scale
  • 2 cupsall-purpose flour
  • 1 1/2 cupsrolled oats
  • 1 cupunsalted butter, melted
  • 1 cupbrown sugar, packed
  • 1/2 teaspoonbaking soda
  • 1/2 teaspoonsalt
  • 2 cupspumpkin puree
  • 1/2 cupgranulated sugar
  • 1/4 cupbrown sugar
  • 2large eggs
  • 1 tablespoonpumpkin pie spice
  • 1 teaspoonvanilla extract
  • 1/2 cupchopped walnuts (optional)

Instructions

  1. Preheat the oven to 350°F (175°C). Grease or line a 9×13-inch baking dish with parchment paper.
  2. In a large bowl, combine the flour, rolled oats, 1 cup brown sugar, baking soda, and salt. Add the melted butter and mix until a crumbly texture forms.
  3. Press half of the crumble mixture firmly into the baking dish to create the base layer.
  4. In a separate bowl, whisk together the pumpkin puree, granulated sugar, 1/4 cup brown sugar, eggs, pumpkin pie spice, and vanilla extract until smooth.
  5. Pour the pumpkin filling evenly over the base layer.
  6. Sprinkle the remaining crumble mixture on top. Add chopped walnuts if desired.
  7. Bake for 40–45 minutes or until the top is golden brown and the pumpkin layer is set.
  8. Allow the bars to cool completely before slicing for clean, neat squares.

Notes

For a nut-free version, omit the walnuts or replace them with pumpkin seeds.
Use a gluten-free flour blend to make these bars gluten-free.
Chilling the bars for 30 minutes before slicing makes cleaner cuts.
Store leftovers in an airtight container in the refrigerator for up to 5 days.

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