The batter for these pumpkin bars is thick and vividly orange, and the cinnamon smells warm before the pan even reaches the oven. I like how quickly it comes together: there’s no butter to cream for the bars, just a smooth whisked mixture that takes on the pumpkin before the dry ingredients go in. Once baked, the bars are soft and tender without feeling heavy, and the cream cheese frosting gives each square a cool, tangy finish.
I’ve learned to let the bars cool all the way in the pan before frosting them. Even a little warmth can soften the frosting and make it slide instead of staying in a neat layer. The 9×13-inch pan gives you 24 pieces that are easy to share, and the crumb stays moist under that creamy topping.

Kitchen Note
Wait until the center of the pan feels completely cool before you frost it. I’ve tried to hurry that pause, and the cream cheese frosting loses its tidy, spreadable layer against even slightly warm bars.
Save these Pumpkin Bars with Cream Cheese Frosting for a tender, cinnamon-scented dessert with a smooth tangy topping.
Why These Pumpkin Bars Need Both Baking Powder and Baking Soda
These two leaveners aren’t duplicates. Baking powder supplies lift as the batter bakes, while baking soda contributes lift and encourages browning in a batter that includes pumpkin. Together, they help the bars bake up tender instead of dense. Since the batter is mixed by whisking rather than by creaming butter and sugar, that lift matters.
Keep the amounts in balance rather than swapping one leavener for the other. Using only baking soda can leave an unpleasant alkaline taste, while leaving out the baking powder can make the bars heavier. Both go into the flour mixture first, which helps distribute them through the batter instead of leaving concentrated pockets. That small bit of mixing prep helps give the whole pan an even texture.
What Keeps the Pumpkin Crumb Tender—and the Frosting Thick

- Pumpkin puree — Plain canned pumpkin brings moisture and pumpkin flavor. Use puree rather than pumpkin pie filling, which is already sweetened and spiced and would throw off the batter.
- Vegetable oil — Oil keeps the bars moist and makes this batter easy to whisk together. Another neutral liquid oil, such as canola oil, works in its place without bringing a strong flavor.
- All-purpose flour — Flour gives the bars their structure. When measuring by volume, fluff it first, spoon it into the measuring cup, and level the top; packing it in can leave you with a dry, firm crumb.
- Eggs — The eggs bind the pumpkin batter and help it set as it bakes. Use large eggs for the intended balance of moisture and structure.
- Cream cheese and butter — These make the frosting creamy, tangy, and easy to spread. Block-style cream cheese gives it better body than whipped or spreadable tub cream cheese; both dairy ingredients should be softened so they beat smooth.
- Powdered sugar and vanilla — Powdered sugar thickens and sweetens the frosting, while vanilla rounds out its tang. If the sugar has hard lumps, press them out before mixing so they don’t leave little bumps in the finished layer.
Mixing and Baking the Bars Without Losing Their Tender Crumb
Distribute the Leaveners Through the Flour
Whisk the flour, baking powder, baking soda, cinnamon, and salt together in a medium bowl. Keep whisking until the cinnamon looks evenly dispersed and there are no visible clumps of leavener. This dry mixture goes into the wet ingredients later, so a thorough whisk now helps every part of the pan rise evenly. Set it aside while you build the pumpkin mixture.
Whisk the Pumpkin Batter Smooth
In a large bowl, whisk the sugar, eggs, and vegetable oil until the mixture looks smooth. Whisk in the pumpkin puree until it’s evenly blended, with no streaks of plain pumpkin. Add the flour mixture and stir just until no dry streaks remain; stop there, since extra stirring can make the bars tougher. Spread the batter evenly in the prepared 9×13-inch pan so the center and edges bake at a similar pace.
Use the Center to Judge Doneness
Bake at 350°F for 25 to 30 minutes. The edges will look set, but check the center rather than relying on color alone: it should spring back lightly when touched. A toothpick inserted in the middle should come out with a few moist crumbs, not wet batter. Cool the bars completely in the pan before moving on to the frosting.
Beat and Spread the Cream Cheese Frosting
Beat the softened cream cheese and butter in a medium bowl until smooth. Add the powdered sugar and vanilla, then beat until the frosting looks creamy, with no visible lumps. Spread it over the cooled bars in an even layer. Cut the pan into 24 pieces once the frosting is spread.
Three Useful Ways to Adapt These Pumpkin Bars
Make the Bars Gluten-Free
Replace the all-purpose flour with a cup-for-cup gluten-free baking blend that includes xanthan gum, using the same amount. The bars may have a slightly different crumb, but this kind of blend is designed to replace wheat flour in baked goods without changing the other ingredients.
Use Brown Sugar for a Deeper, Softer Bar
Swap the granulated sugar for the same volume of packed light brown sugar. Its molasses notes pair well with the cinnamon, and the bars come out a little moister and denser than the original version.
Make the Frosting Dairy-Free
Use the same amounts of plant-based block cream cheese and vegan butter in place of the dairy cream cheese and butter. Keep the powdered sugar and vanilla the same. The frosting will still be creamy, though plant-based brands can give it a slightly softer set.
Storage and Reheating
- Refrigerator: Cover and refrigerate within 2 hours. The frosted bars keep for up to 4 days; the frosting firms up when cold.
- Freezer: Freeze the bars unfrosted for the best texture. Wrap individual pieces well, place them in a freezer-safe container, and use within 2 months; thaw overnight in the refrigerator before frosting.
- Reheating: These bars don’t need reheating. Let a refrigerated piece stand at room temperature for about 15 minutes before serving, and don’t microwave a frosted bar or the frosting will soften unevenly.
Questions That Come Up When Baking Pumpkin Bars

Pumpkin Bars with Cream Cheese Frosting
Ingredients
Equipment
Method
- Heat the oven to 350°F.
- Coat a 9x13-inch baking pan with the cooking spray.
- In a medium bowl, whisk together the flour, baking powder, baking soda, cinnamon, and salt.
- In a large bowl, whisk the sugar, eggs, and oil until smooth.
- Whisk in the pumpkin puree.
- Add the flour mixture to the pumpkin mixture and stir just until no dry streaks remain.
- Spread the batter evenly in the prepared pan.
- Bake for 25 to 30 minutes, until the center springs back lightly and a toothpick inserted in the center comes out with a few moist crumbs.
- Cool completely in the pan.
- Beat the cream cheese and butter in a medium bowl until smooth.
- Beat in the powdered sugar and vanilla until creamy.
- Spread the frosting over the cooled bars.
- Cut into 24 pieces.



