Pumpkin Bars Brown Sugar Frosting

Featured in: Sweet Messy Treats

These moist pumpkin bars combine warm spices like cinnamon, nutmeg, and cloves with tender pumpkin puree for rich flavor. The bars are topped with a creamy, decadent brown sugar cream cheese frosting that balances sweetness perfectly. Optional nuts add a pleasant crunch. Baking requires simple mixing and a 350°F oven for about 35 minutes. Cooling before frosting ensures the topping holds beautifully. Ideal for cozy occasions or gatherings, these bars deliver both comforting taste and a soft texture.

Updated on Sun, 23 Nov 2025 11:36:00 GMT
Golden, frosted pumpkin bars with a dusting of brown sugar, inviting a delicious bite. Save to Pinterest
Golden, frosted pumpkin bars with a dusting of brown sugar, inviting a delicious bite. | messlitreats.com

Moist, warmly spiced pumpkin bars topped with a decadent brown sugar cream cheese frosting—an irresistibly cozy fall treat perfect for any gathering.

This has quickly become my go-to fall dessert to share with friends and family at gatherings.

Ingredients

  • For the Pumpkin Bars: 1 1/2 cups all-purpose flour, 1 teaspoon baking soda, 1 teaspoon ground cinnamon, 1/2 teaspoon ground nutmeg, 1/4 teaspoon ground cloves, 1/2 teaspoon salt, 1 1/2 cups granulated sugar, 1/2 cup vegetable oil, 2 large eggs, 1 (15-ounce) can pumpkin puree (not pumpkin pie filling), 1/2 cup chopped walnuts or pecans (optional)
  • For the Brown Sugar Frosting: 8 tablespoons (1 stick) unsalted butter softened, 4 ounces cream cheese softened, 3 cups powdered sugar, 1/2 cup packed light brown sugar, 1 teaspoon vanilla extract, 2 to 4 tablespoons milk or cream

Instructions

Preheat Oven:
Preheat oven to 350℉ (175℃). Grease and flour a 9×13-inch baking pan.
Mix Dry Ingredients:
In a large bowl, whisk together the flour, baking soda, cinnamon, nutmeg, cloves, and salt.
Mix Wet Ingredients:
In another large bowl, whisk together the granulated sugar, vegetable oil, and eggs until smooth.
Add Pumpkin:
Stir in the pumpkin puree until fully incorporated.
Combine Mixtures:
Gradually add the dry ingredients to the wet ingredients, mixing just until combined.
Add Nuts:
Fold in walnuts or pecans if using.
Prepare Batter:
Pour the batter into the prepared pan and spread evenly.
Bake:
Bake for 30 to 35 minutes or until a toothpick inserted in the center comes out clean.
Cool:
Allow bars to cool completely in the pan on a wire rack before frosting.
Make Frosting:
In a large bowl, beat the softened butter and cream cheese until smooth and creamy.
Add Sugars:
Gradually add the powdered sugar and brown sugar, mixing until fully incorporated and fluffy.
Add Vanilla:
Mix in the vanilla extract.
Add Milk:
Add milk or cream one tablespoon at a time until the frosting is smooth and spreadable.
Frost Bars:
Spread frosting evenly over the cooled bars. Cut into squares and serve.
Close-up of a perfectly frosted pumpkin bars tray, showcasing a creamy topping, ideal dessert. Save to Pinterest
Close-up of a perfectly frosted pumpkin bars tray, showcasing a creamy topping, ideal dessert. | messlitreats.com

These bars are a family favorite during fall gatherings and never last more than a day at our house.

Required Tools

9×13-inch baking pan, mixing bowls, whisk, electric mixer or hand mixer, spatula, wire cooling rack, measuring cups and spoons

Allergen Information

Contains wheat (gluten), eggs, milk (butter cream cheese), tree nuts (if using walnuts or pecans). Always verify ingredient labels if allergies are a concern.

Nutritional Information

Calories: 310, Total Fat: 15 g, Carbohydrates: 43 g, Protein: 3 g per serving

Served pumpkin bars, showing a layered delight, the pumpkin spiced cake with frosting. Save to Pinterest
Served pumpkin bars, showing a layered delight, the pumpkin spiced cake with frosting. | messlitreats.com

This pumpkin bar recipe combines classic fall flavors with a creamy frosting, perfect for cozy occasions.

Common Recipe Questions

Can I substitute the nuts in these bars?

Yes, you can omit nuts or swap walnuts for pecans depending on preference or allergies. Both add a pleasant texture.

How do I prevent the frosting from melting?

Allow the bars to cool completely before spreading frosting to avoid melting and ensure a smooth, creamy finish.

Is there a way to make these bars lighter?

Substitute half the oil with unsweetened applesauce to reduce fat while maintaining moisture and tenderness.

What spices are used in the bars?

The bars include ground cinnamon, nutmeg, and cloves, creating a warm and cozy spice profile perfect for fall.

How should these bars be stored?

Store in an airtight container in the refrigerator for up to 5 days to keep them fresh and flavorful.

Can I use canned pumpkin pie filling instead of puree?

It’s best to use pure pumpkin puree, as pie filling contains added spices and sugars that alter the texture and flavor.

Pumpkin Bars Brown Sugar Frosting

Moist, warmly spiced pumpkin bars topped with a creamy brown sugar frosting, perfect for autumn gatherings.

Prep Duration
20 min
Cooking Duration
35 min
Overall Duration
55 min
Created by messli Sophie Lane


Skill Required Easy

Cuisine Origin American

Portion Yield 12 People served

Diet Preferences Meat-Free

List of Ingredients

Pumpkin Bars

01 1 1/2 cups all-purpose flour
02 1 teaspoon baking soda
03 1 teaspoon ground cinnamon
04 1/2 teaspoon ground nutmeg
05 1/4 teaspoon ground cloves
06 1/2 teaspoon salt
07 1 1/2 cups granulated sugar
08 1/2 cup vegetable oil
09 2 large eggs
10 1 (15-ounce) can pumpkin puree (not pumpkin pie filling)
11 1/2 cup chopped walnuts or pecans (optional)

Brown Sugar Frosting

01 8 tablespoons (1 stick) unsalted butter, softened
02 4 ounces cream cheese, softened
03 3 cups powdered sugar
04 1/2 cup packed light brown sugar
05 1 teaspoon vanilla extract
06 2 to 4 tablespoons milk or cream

Step-by-Step Directions

Step 01

Preheat Oven and Prepare Pan: Set oven to 350°F. Grease and flour a 9×13-inch baking pan.

Step 02

Mix Dry Ingredients: In a large bowl, whisk together flour, baking soda, cinnamon, nutmeg, cloves, and salt.

Step 03

Combine Wet Ingredients: In another large bowl, whisk granulated sugar, vegetable oil, and eggs until smooth.

Step 04

Add Pumpkin Puree: Stir pumpkin puree into the wet mixture until fully incorporated.

Step 05

Combine Wet and Dry Mixtures: Gradually add dry ingredients to the wet, mixing just until combined.

Step 06

Fold in Nuts: If desired, fold in chopped walnuts or pecans.

Step 07

Bake the Bars: Pour batter into prepared pan and spread evenly. Bake 30 to 35 minutes until a toothpick inserted in center comes out clean.

Step 08

Cool Completely: Let bars cool fully in pan on a wire rack before frosting.

Step 09

Prepare Frosting: Beat softened butter and cream cheese in a large bowl until smooth and creamy.

Step 10

Add Sugars: Gradually blend in powdered sugar and brown sugar until fluffy and fully incorporated.

Step 11

Flavor Frosting: Mix in vanilla extract.

Step 12

Adjust Frosting Consistency: Add milk or cream one tablespoon at a time until the frosting is smooth and spreadable.

Step 13

Frost the Bars: Spread frosting evenly over cooled bars. Cut into squares and serve.

Kitchen Tools Needed

  • 9×13-inch baking pan
  • Mixing bowls
  • Whisk
  • Electric mixer or hand mixer
  • Spatula
  • Wire cooling rack
  • Measuring cups and spoons

Allergy Warnings

Check all listed ingredients for allergens. Reach out to a healthcare provider if you aren't sure.
  • Contains wheat (gluten), eggs, dairy (butter, cream cheese), and tree nuts (if using walnuts or pecans).

Nutrition per serving

Nutritional details are just for your reference. Always talk to a doctor for specific health advice.
  • Energy (Calories): 310
  • Fats: 15 g
  • Carbohydrates: 43 g
  • Proteins: 3 g