Pumpkin Bars with Cream Cheese Frosting

Every fall I have to make this pumpkin bars recipe. I could have gone with a more trendy recipe that I found on social media, but this one is a favorite. The cream cheese frosting is rich and is the perfect balance not to be too sugary. The bars are baked into a thin and tender layer that is moist and spiced just right. The recipe makes a large batch and is perfect to feed a crowd.

I’ve been making this recipe for years, and I always enjoy making it because it reminds me of my grandma. As easy as it is to replicate, I’ve seen it made for special occasions. It’s one of those recipes that, while not having toasted spices like most gourmet dessert recipes, is still very good. The frosting is easy to stack without it smearing all over. When I say you can make it all in one bowl, I mean you can really make it all in one bowl and you won’t even need a stand mixer for it.

Why This Sweet Recipe Works

• The jelly roll pan is the secret. A 10×15 pan spreads the batter thin, so you get a bar that bakes evenly all the way through — no sunken center, no overbaked edges.
• One can of pumpkin puree does the heavy lifting. It adds moisture, color, and a gentle sweetness that means you don’t need a long list of spices to make these taste like fall.
• Vegetable oil instead of butter keeps the crumb tender even after refrigerating — bars made with butter can get dense and dry when cold. These don’t.
• The cream cheese frosting is thick and stable. A full pound of powdered sugar gives it structure, so it holds its shape and doesn’t slide around when you cut the bars.
• Big batch yield. One pan gives you about 24–30 bars depending on how you cut them. That’s a lot of dessert for not a lot of work.

What to Know Before You Start

Let\u2019s avoid a headache before we even preheat the oven by remembering a few things:

Use a real jelly roll pan, not a 9×13 baking dish. A 9×13 pan will make the bars come out way too thick, and the batter won’t cook evenly – so you’ll end up with a raw middle or overbaked edges. What you need is a 10×15 jelly roll pan. They are cheap, and they come in handy for making sheet cakes, cookies, and roasting veggies.

Before frosting, allow the bars to cool completely. Though it may seem simple, it is the step that people skip when under time pressure. If warm, bars will allow the frosting to melt and you will lose that clean thick layer of frosting. Give it at least 45 minutes sitting on the counter, or to speed it up, place in the fridge.

You should plan for both the cream cheese and butter to be at room temperature before you begin making the frosting. If the cream cheese is cold, even beating it for a long time will create lumps. Setting both of them out for 30 minutes will usually suffice.

Moist dense sheet cake texture (as opposed to fluffy layer cake) is intentional. These are designed to be cut and picked up by hand so if you want something airier, this wont be the recipe for that.

Ingredients

For the Pumpkin Bars

• 2 cups sugar — This is a sweet bar. You could reduce it slightly (to 1¾ cups) if you prefer less sweetness, but with a full pound of powdered sugar in the frosting, the bars themselves need some sweetness to balance.
• 1 cup vegetable oil — Don’t substitute melted butter here. Oil is what keeps these moist for days after baking.
• 4 eggs — Standard large eggs. They give the bars structure and help them set up cleanly.
• 2 cups all-purpose flour — Nothing fancy. Spoon and level it rather than scooping directly from the bag so you don’t pack in too much.
• 1 can (15 oz) pumpkin puree — Not pumpkin pie filling. Pure pumpkin puree. Libby’s is what I use and it’s consistent year after year.
• 1 teaspoon baking soda
• 2 teaspoons baking powder — Both leaveners together give these bars a slight lift without making them too cakey.
• 1 teaspoon vanilla
• 1 teaspoon cinnamon — Just cinnamon. The recipe doesn’t call for a pumpkin spice blend, and that’s fine. The pumpkin flavor is the star. If you want more spice, add ¼ teaspoon each of ginger and nutmeg — but taste it first without them.

For the Cream Cheese Frosting

• 1 package (8 oz) cream cheese, room temperature — Full fat. Don’t use light or whipped cream cheese — the frosting won’t set up properly.
• 4 oz (1 stick) butter, room temperature
• 1 lb powdered sugar — That’s a whole standard bag. Sift it if you have lumps, otherwise just add it gradually.
• 2 teaspoons vanilla

How to Make Pumpkin Bars with Cream Cheese Frosting

Step 1: Prep the Pan and Preheat

Set your oven to 350°F and spray your 10×15 jelly roll pan generously with cooking spray, or line it with parchment and spray it again. If you want to cut the bars on a board instead of in the pan, using parchment paper makes it easier to lift the whole sheet out.

Step 2: Mix the Batter

In a big bowl, mix together sugar, vegetable oil and eggs. Whisk until smooth. It should look like a glossy, somewhat thick liquid. Stir in the pumpkin puree and the vanilla. The batter will take on a warm orange color at this step.

Combine the flour, baking soda, baking powder, and cinnamon. Stir until they’re all mixed together, but don’t overstir. You are not developing the batter’s gluten, just the dry streaks fully covered, until the batter is all one color. The batter will be thick and pourable, but not runny.

Step 3: Bake

Evenly spread the batter into the pan using a spatula or spoon. The goal is to make the surface as even as possible so the bars will bake evenly.

For 20 to 25 minutes, bake at 350°F. Begin checking at 20 minutes. If a toothpick inserted in the middle of the bars comes out clean, and the top is set, not shiny or wet, the bars are ready. The edges should be slightly pulled away from the sides of the pan. Do not overbake. The bars dry out quickly after the 25 minute mark.

Step 4: Cool Completely

Place the pan on a wire rack and allow the bars to cool completely. This will take around 45 minutes to an hour. If you want to speed up the process, put the pan in the refrigerator for 20–30 minutes after the pan is no longer hot to the touch.

**Do not add frosting while bars are still warm.** If the bars are warm, the frosting will melt and instead of a thick coat of frosting you will have a thin, glossy layer.

Step 5: Make the Frosting

Warm cream cheese and butter in a bowl and mix on medium speed with a hand mixer for approximately 2 minutes until combined and fluffy. Add vanilla and slowly stream in the powdered sugar while mixing on low. Once all the powdered sugar is in, increase the speed to medium or higher. Frosting should be mixed until smooth and will hold a soft peak.

You may add a teaspoon of milk if the frosting is too stiff, and, if it is too soft, add in a bit more powdered sugar. The frosting should be thicker than a glaze. However, it should not be thick enough so that it rips the bars apart when you frost it.

A regular butter knife works to some extent, but so much more patience is required. A 9-inch offset spatula is the ideal tool for frosting a full sheet pan.

Step 6: Frost and Cut

Frost the bars, making sure to go all the way to the edges. I typically make 5 cuts on the long side and 4 cuts on the other side, totaling 30 bars, but cut them however you like.

Equipment That Makes This Easier

While you don’t necessarily need anything special for this recipe, a few things would make it noticeably smoother:

• 10×15 Jelly Roll Pan — The right pan is non-negotiable for this recipe. This Nordic Ware aluminum pan is what I reach for; it heats evenly and the bars release cleanly.
• Offset Spatula — Makes spreading frosting over the full pan so much easier than trying to do it with a regular spatula or knife.
• Hand Mixer — For the frosting. You could do it by hand with a lot of elbow grease, but a hand mixer gives you a smoother, fluffier result in two minutes.

Helpful Tips

Common Mistakes and How to Avoid Them

Spray the pan generously, or use parchment paper. Sugar-rich bar sticky patterns highly recommend this step.

Frosting is lumpy. Almost always caused by cold cream cheese. If it’s lumpy after mixing, you can try warming the bowl slightly — set it over a pot of warm (not boiling) water for 30 seconds, then mix again. Otherwise, your best bet is to press it through a fine mesh sieve, though that’s tedious. Start with room-temperature cream cheese, and you won’t have this problem.

Bars can be dry because they may have been overbaked. Check on it around the 20 minute mark, and take it out as soon as the toothpick in the center comes out clean. It is better to err on the side of taking it out a minute early.

Bars are dense and sticky. This could be caused by over packing the flour measuring cup or by underbaking the bars. Use the spoon-and-level method to measure your flour, and use a clean toothpick to test for doneness before removing the pan from the oven.

Easy Upgrades

Here are a few more suggestions to intensify the flavor. The recipe currently uses cinnamon, which contributes a softer spice taste. For more warmth, consider adding ¼ teaspoon of ginger, ¼ teaspoon of nutmeg, and a small amount of clove. Another option is to replace cinnamon with 1 ½ teaspoons of a commercially available pumpkin pie spice blend.

Cinnamon sugar bars. Before frosting, sprinkle some cinnamon sugar on the bars for a nice texture on top.

Add a pinch of salt to the frosting. Adding a tiny pinch of kosher salt to the cream cheese frosting reduces the overwhelming sweetness, elevating the flavor to a more nuanced level. Definitely worth it.

Variations and Substitutions

Can I Use a Different Pan?

Yes, technically, you can use a 9×13, but the recipe specifies a 10×15. This means your bars will be thicker, so they will likely need an additional 30-35 minutes to bake, so make sure you watch them closely. The bars will likely be more cake-like than they will be bar-like. If you’re using a 13×18 half sheet pan, it’ll give you thinner bars that will bake more quickly, so check on them around the 15 minute mark.

Can I Skip the Frosting?

Sure. The bars taste good by themselves or just lightly covered with powdered sugar. But what makes this recipe stand out is the cream cheese frosting. It is worth making.

Can I Make These Gluten-Free?

Here, a 1:1 gluten-free flour blend (like Bob’s Red Mill 1-to-1) works decently. Expect the texture to feel different (more dense), but the flavor should hold. I haven’t tested other brands, so results may change.

Can I Reduce the Sugar?

Regarding the bars, yes, you may reduce the amount of sugar to 1¾ cups and not notice much difference. Going below that will begin to impact the texture and moisture of the bars, though. For the frosting, if you reduce the amount of powdered sugar, it will become softer and less stable. If you take this route, you will want to refrigerate the finished bars to keep the frosting from losing its shape.

Storage, Make-Ahead, and Leftovers

How to Store Pumpkin Bars

Once these bars are frosted, they’ll need to go in the fridge due to the cream cheese frosting. You can either cover the pan with plastic wrap, or you can move the bars to an airtight container. They last in the fridge for up to 5 days.

Take them out of the fridge around 15-20 minutes before serving. It’s okay to eat the cold bars, but the frosting will soften a bit and the bars will be a little more tender when not ice cold.

Can You Make These Ahead?

Yes! In fact, they taste better after a day in the fridge! Not only do the flavors deepen, but the bars also become firmer making them easier to cut. You can even bake and frost the bars a day in advance – just cover them and pop them in the fridge overnight.

You can bake the bars and freeze them without frosting. After baking, let the sheet cool and wrap it tightly in plastic wrap and then in foil. It can stay in the freezer for up to two months. To unfrosted, take the sheet out of the freezer two days ahead of when you want to frost and serve and place it in the refrigerator to thaw. The day you want to frost and serve it, make the frosting and frost it right before serving.

Can You Freeze Pumpkin Bars?

You can freeze the cookies with the frosting already on them, but just keep in mind that the texture of the frosting will likely change a little after thawing. It may become a little softer and even a little grainy. For that reason, if you want to plan ahead, it’s better to freeze the cookies without any frosting on them. If you do decide to freeze the cookies with frosting on them, do so by freezing them as a single layer first until they are solid. Then, you can put them into a container with parchment paper between each layer. They should thaw in the refrigerator.

Serving Ideas

These bars can totally be enjoyed as a permissable dessert in their own right, but there are a few ways to make them even better:

• A cup of coffee or apple cider. The cream cheese frosting is rich, and something warm and slightly acidic or bitter alongside balances it out.
• A light dusting of cinnamon over the frosted top before serving — adds visual appeal and a little extra spice in each bite.
• For a potluck or party, leave the bars in the pan and let people cut their own pieces. Less work for you, and they travel better uncut.

Frequently Asked Questions

Do I have to use a jelly roll pan?

For this recipe, yes — or something close to the same size. A 10×15 jelly roll pan is what gives these bars their even, thin texture. A 9×13 will work in a pinch but the bars will be thicker, take longer to bake, and have a different texture. Don’t bake these in a standard 9×13 brownie pan and expect the same result.

Can I use pumpkin pie filling instead of pumpkin puree?

No. Pumpkin pie filling already has sugar and spices already mixed in, along with who knows what other additives. Using this in the recipe would make the bars way too sweet and the spice balance would be all out of whack. The label needs to say 100% pumpkin or pumpkin puree – nothing else!

Why did my frosting turn out runny?

Your frosting may have become warm due to the frosting being applied to the bars too early, which means the bars may not have cooled down completely, or perhaps the butter or cream cheese was warmed up too much. If the butter or cream cheese was melted instead of being softened to room temperature, then that could be the cause. You can put the whole pan in the fridge for about 30 minutes to stiffen the frosting, so it should be fine as long as the frosting is already running on the bars. If the frosting has not been put onto the bars yet and is still in the bowl, then you can add more powdered sugar in increments of a few tablespoons until the frosting becomes stiff.

How do I know when the bars are done baking?

A clean toothpick or one with only a few crumbs should be the result of your testing. The appearance of the top should be set, not shiny. The edges will just be starting to pull away from the sides of the pan. Don’t wait for the top to turn golden brown. Due to the moisture in the batter, pumpkin bars won’t significantly brown on top.

Can I double the recipe?

To double the recipe you’d need 2 pans that are 10×15. Don’t make the mistake of trying to put a double batch in one pan. The bars would be too thick and wouldn’t bake properly. The recipe accommodates a double batch, so just bake the sheets separately or if your oven is big enough to hold both, you can bake them on two racks (just be sure to rotate them halfway through).

How far in advance can I make these?

You can store fully frosted bars in the fridge, covered, for up to 2 days. For longer storage, freeze the bars before frosting them (up to 2 months). To serve, thaw in the fridge overnight, make new frosting, and frost the bars. The bars cut more cleanly after sitting in the fridge overnight, so making them a day ahead is definitely the best way to go.

Related Recipes

If you enjoyed these pumpkin bars, here are some more fall desserts to bookmark:

• Pumpkin Chocolate Chip Cookies — soft, cakey cookies with chocolate chips and just enough spice
• Easy Pumpkin Bread — a one-bowl quick bread that uses the same pumpkin puree you already have open
• Cream Cheese Frosting — the standalone frosting recipe if you ever want it for cupcakes or layer cake
• Pumpkin Cheesecake Bars — a richer, creamier take on pumpkin bars with a graham cracker crust
• Apple Bars — same idea, different fall fruit — just as easy and just as good for a crowd