Pumpkin Walnut Bars

These classic pumpkin walnut bars are the kind of collected recipe I keep coming back to when fall baking season arrives. The pumpkin makes every square soft, moist, and tender, while cinnamon adds that familiar warm aroma and chopped walnuts bring just enough crunch to keep the texture interesting. The original recipe specifically recommends cream cheese frosting, and it is an excellent pairing for the warmly spiced pumpkin base.

I especially like that these bars rely on straightforward pantry ingredients and a simple mixing method. There is no mixer required for the batter, and making two pans at once gives you 24 generous bars, which is handy for family gatherings, potlucks, bake sales, or sharing with neighbors. They are plenty good plain, but a layer of tangy cream cheese frosting turns them into a more indulgent dessert.

Love this recipe? Pin it to your Fall Baking or Pumpkin Desserts board on Pinterest so you don’t lose it!

Ingredients

Pumpkin Batter

2 cups canned pumpkin puree

1 cup vegetable oil

4 large eggs

2 cups granulated sugar

2 cups all-purpose flour

2 tsp baking powder

2 tsp baking soda

2 tsp salt

2 tsp ground cinnamon

1 cup walnuts, chopped

For the Pans

Nonstick cooking spray or additional oil, as needed

For Serving

Cream cheese frosting (Optional)

Instructions

1. Heat the oven to 175°C / 350°F. Lightly grease two 9-by-13-inch baking pans.
2. In a medium bowl, whisk together the flour, baking powder, baking soda, salt, and cinnamon until evenly combined.
3. In a large bowl, whisk the pumpkin puree, vegetable oil, eggs, and sugar until smooth and well blended.
4. Add the dry ingredients to the pumpkin mixture. Stir gently just until no obvious streaks of flour remain. Avoid overmixing.
5. Fold in the chopped walnuts until evenly distributed throughout the batter.
6. Divide the batter evenly between the prepared pans and smooth the tops.
7. Bake at 175°C / 350°F for about 25 minutes. The bars are ready when the centers spring back lightly and a toothpick inserted near the middle comes out clean or with a few moist crumbs.
8. Transfer the pans to wire racks and let the bars cool completely. Spread with cream cheese frosting, if desired, before slicing each pan into 12 bars.

Cooking Notes

Do not substitute pumpkin pie filling for 100% pumpkin puree. Pie filling contains added sugar and spices that will change both the sweetness and texture.

Measure the flour by spooning it into the measuring cup and leveling the top. Packing too much flour into the cup can make these otherwise tender bars heavy.

Once the flour goes into the wet ingredients, mix only until combined. Overmixing develops additional gluten and can make the bars tougher.

Walnuts can be replaced with pecans or omitted for a nut-free version. For deeper nutty flavor, lightly toast the walnuts before adding them to the batter.

Cool the bars completely before applying cream cheese frosting. Frosting warm bars can cause the topping to soften or melt.

Nutrition

Yields: 24 Servings

A practical serving is 1 bar, or one-twelfth of a 9-by-13-inch pan. Based on the ingredient quantities and typical ingredient nutrition values, the original published estimate of approximately 235 calories per unfrosted bar is reasonable. Actual values vary with ingredient brands, pan division, and bar size.

Estimated Nutrition per Serving

• Calories: 235 kcal
• Fat: 13.0 g
• Carb: 27.0 g
• Protein: 3.0 g

Cream cheese frosting is not included in these estimates because the source recipe does not specify a frosting quantity.

Recipe Science

These bars combine pumpkin puree, eggs, vegetable oil, sugar, flour, chemical leaveners, cinnamon, and walnuts in a high-moisture cake-style batter. Pumpkin contributes substantial water and plant solids, while oil supplies fat without becoming firm at room temperature. That combination helps explain the bars’ characteristically soft, moist crumb.

Both baking powder and baking soda provide leavening, while eggs contribute structure as their proteins set during baking. Sugar does more than provide sweetness; it also helps retain moisture and promotes tenderness. Mixing the flour only until incorporated limits gluten development. At approximately 25 minutes of baking, the batter should have enough time to set without losing excessive moisture.

These bars work well for batch baking because the batter is divided between two standard pans. Unfrosted bars can be stored tightly covered at room temperature for a short period or frozen for longer storage. Bars topped with cream cheese frosting should be refrigerated because of the perishable dairy topping.

Dietary Notes & Health Alerts: At approximately 401 mg sodium per bar, the original nutrition information places one serving below the FDA’s 20% Daily Value threshold for sodium, based on a 2,300 mg Daily Value. Saturated fat is also relatively low at about 2 g per serving. The source reports 18 g total sugar but does not distinguish naturally occurring from added sugar, so an exact added-sugar Daily Value comparison cannot be made from the supplied data. Frosting would increase calories, saturated fat, and added sugar.

Why You’ll Love This Recipe

• Exceptionally Moist: Pumpkin puree and vegetable oil create tender bars that resist drying out quickly.
• Easy Mixing: The batter uses simple wet-and-dry mixing techniques, so no complicated equipment is necessary.
• Warm Fall Flavor: Cinnamon and pumpkin deliver a cozy seasonal flavor without an overly complicated spice blend.
• Built for Sharing: Two 9-by-13-inch pans yield 24 bars, making this recipe especially practical for parties and potlucks.
• Easy to Customize: Keep the walnuts, swap in pecans, leave out the nuts, or finish the bars with cream cheese frosting.

FAQ

• Can I make these without walnuts? Yes. Simply omit them. The bars will remain moist and tender, although you will lose the contrasting crunch.
• Can I use fresh pumpkin puree? Yes, provided it has a consistency similar to canned pumpkin. Very watery homemade puree should be drained first because excess moisture can affect the crumb.
• Why did my pumpkin bars turn out dense? Overmeasuring the flour or vigorously mixing after adding the dry ingredients are common causes. Measure carefully and stir only until combined.
• Can I make them ahead? Absolutely. Bake and cool the bars ahead of time, cover them well, and frost closer to serving. Refrigerate them after adding cream cheese frosting.
• Can I freeze pumpkin bars? Yes. Unfrosted bars freeze particularly well. Wrap individual pieces tightly, place them in an airtight freezer container, and thaw before serving.

Conclusion

These moist pumpkin walnut bars are exactly the kind of dependable, uncomplicated fall dessert worth keeping in your recipe box. Cooking and baking are always a little personal, so don’t hesitate to change the nuts, adjust the topping, or make these bars your own.

Would you serve yours plain, with cream cheese frosting, or with a handful of extra toasted walnuts on top? Happy baking!