Pumpkin Bars with Cream Cheese Frosting

These pumpkin bars with cream cheese frosting are the recipe I come back to every single fall. Not because they’re trendy or because I saw them on social media — but because they genuinely deliver.

The bars bake up thin and tender with a moist, lightly spiced crumb, and the cream cheese frosting on top is thick and rich without being cloying. One 10×15 jelly roll pan makes a big batch, which means they’re ready for a crowd without any extra effort on your part.

This is my grandma’s recipe, and I’ve been making it for years. It’s one of those recipes that looks a little plain on paper — no fancy spice blend, no browned butter, no toasted anything — but the results are consistently great.

The pumpkin keeps the bars soft for days. The frosting sets up firm enough to stack without smearing.

And the whole thing comes together in one bowl without a stand mixer.

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

A few things that will save you a headache before you even preheat the oven:

Use a real jelly roll pan. A 9×13 baking dish is not the same thing.

The batter is designed for a larger, shallower pan. In a 9×13, the bars come out too thick and won’t bake evenly — you’ll end up with a raw center or overbaked edges.

A 10×15 jelly roll pan is what you need. They’re inexpensive and useful for sheet cakes, cookies, and roasting vegetables too.

The bars must be fully cool before frosting. This sounds obvious, but it’s the step people skip when they’re in a hurry.

If there’s any warmth left in the bars, the frosting will melt into the surface and you’ll lose that clean, thick layer. Give them at least 45 minutes on the counter, or pop the pan in the fridge to speed it up.

The cream cheese and butter need to be at room temperature. Cold cream cheese will leave lumps in your frosting no matter how long you beat it.

Set both out at least 30 minutes before you plan to make the frosting.

These are bars, not cake. The texture is closer to a dense, moist sheet cake than a fluffy layer cake — that’s intentional.

They’re meant to be cut into squares and picked up by hand. If you want something airier, this isn’t 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

Preheat your oven to 350°F. Spray your 10×15 jelly roll pan generously with cooking spray, or line it with parchment paper and spray the parchment.

The parchment makes lifting the whole sheet out easier if you want to cut the bars on a board rather than in the pan.

Step 2: Mix the Batter

In a large bowl, combine the sugar, vegetable oil, and eggs. Whisk until smooth — it’ll look like a glossy, slightly thick liquid.

Add the pumpkin puree and vanilla and mix until combined. The batter will turn a warm orange color at this point.

Add the flour, baking soda, baking powder, and cinnamon. Stir until just combined — don’t overmix.

You’re not developing gluten here; just mix until the dry streaks are gone and the batter looks uniform. It will be fairly thick and pourable, not runny.

Step 3: Bake

Pour the batter into the prepared pan and spread it into an even layer — a small offset spatula works well here, but the back of a spoon does the job. Get it as even as you can so the bars bake uniformly.

Bake at 350°F for 20–25 minutes. Start checking at 20 minutes.

The bars are done when a toothpick inserted in the center comes out clean and the top looks set — not shiny or wet. The edges will be just beginning to pull away from the sides of the pan.

Don’t overbake; these can dry out quickly past the 25-minute mark.

Step 4: Cool Completely

Set the pan on a wire rack and let the bars cool completely. This takes about 45 minutes to an hour at room temperature.

If you’re in a hurry, slide the pan into the refrigerator for 20–30 minutes once it’s no longer hot to the touch.

Resist the urge to frost them warm. A slightly warm bar will melt the top layer of frosting and you’ll end up with a thin, glossy coating instead of the thick, creamy layer this recipe is known for.

Step 5: Make the Frosting

Beat the room-temperature cream cheese and butter together until smooth and fluffy — about 2 minutes with a hand mixer on medium speed. Add the vanilla, then gradually add the powdered sugar, mixing on low until it’s incorporated before turning the speed up.

Keep mixing until the frosting is smooth, thick, and spreadable. It should hold a soft peak.

If the frosting seems too stiff to spread, add a teaspoon of milk at a time until it loosens. If it seems too soft, add a little more powdered sugar.

It should be thicker than a pourable glaze but not so stiff that it tears the bars when you spread it.

A 9-inch offset spatula is genuinely the best tool for spreading frosting over a full sheet pan. A regular butter knife works but takes more patience.

Step 6: Frost and Cut

Dollop the frosting over the cooled bars and spread it into an even layer, all the way to the edges. Cut into squares — I usually do 5 cuts across the long side and 4 cuts down the short side for 30 bars, but you can cut them as large or small as you like.

Equipment That Makes This Easier

You don’t need specialty equipment for this recipe, but a few things 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

Bars stick to the pan. Spray the pan generously, or use parchment.

Don’t skip this step — the bars have enough sugar in them to stick to an ungreased surface.

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 are dry. Usually from overbaking.

Check at 20 minutes and pull them as soon as the center toothpick comes out clean. Erring a minute early is better than a minute late here.

Bars are dense and gummy. Could be too much flour (from packing the measuring cup) or underbaking.

Use the spoon-and-level method for flour and make sure the toothpick truly comes out clean before you pull the pan.

Easy Upgrades

Add more spice. The recipe uses just cinnamon, which gives a clean, mild spice flavor.

If you want more warmth, add ¼ teaspoon ginger, ¼ teaspoon nutmeg, and a pinch of cloves. You could also substitute 1½ teaspoons of a store-bought pumpkin pie spice blend for the cinnamon.

Toast the bars with cinnamon sugar. Before frosting, dust the cooled bars with a light sprinkle of cinnamon sugar for a little extra texture on top.

Add a pinch of salt to the frosting. A small pinch of kosher salt in the cream cheese frosting cuts the sweetness slightly and makes the flavor more complex.

Worth doing.

Variations and Substitutions

Can I Use a Different Pan?

Technically yes, but the recipe is built for a 10×15. If you use a 9×13, the bars will be thicker and will need more time — probably 30–35 minutes, and you’ll want to watch them carefully.

The texture will be more cake-like and less bar-like. A half sheet pan (13×18) will give you thinner bars that bake faster — check at 15 minutes.

Can I Skip the Frosting?

Yes. The bars are good plain or with a simple dusting of powdered sugar.

But the cream cheese frosting is what makes this recipe memorable — it’s worth making.

Can I Make These Gluten-Free?

A 1:1 gluten-free flour blend (like Bob’s Red Mill 1-to-1) works reasonably well here. The texture will be slightly different — a bit more dense — but the flavor holds up.

I haven’t tested all brands, so results may vary.

Can I Reduce the Sugar?

In the bars themselves, yes — you can drop to 1¾ cups without noticing much difference. Going lower than that starts to affect the texture and moisture.

In the frosting, reducing the powdered sugar will make it softer and less stable; if you go that route, refrigerate the finished bars so the frosting holds its shape.

Storage, Make-Ahead, and Leftovers

How to Store Pumpkin Bars

Once frosted, these bars need to be refrigerated because of the cream cheese frosting. Cover the pan tightly with plastic wrap or transfer the bars to an airtight container.

They keep well in the refrigerator for up to 5 days.

Pull them out of the fridge about 15–20 minutes before serving. Cold bars are fine to eat, but the texture of the frosting softens slightly at room temperature and the bars themselves are a little more tender when they’re not ice cold.

Can You Make These Ahead?

Yes, and they actually benefit from a day in the fridge. The flavors deepen and the bars firm up, making them easier to cut cleanly.

You can bake and frost the bars a day before you need them — cover tightly and refrigerate overnight.

Alternatively, bake the bars and freeze them unfrosted. Wrap the cooled (uncut) sheet tightly in plastic wrap, then foil, and freeze for up to 2 months.

Thaw in the refrigerator overnight, then make the frosting fresh and apply before serving.

Can You Freeze Pumpkin Bars?

You can freeze them frosted, but the frosting texture changes slightly after thawing — it can get a bit soft and slightly grainy. Freezing unfrosted is the better option if you’re planning ahead.

If you do freeze them frosted, freeze in a single layer first until solid, then transfer to a container with parchment between layers. Thaw in the refrigerator.

Serving Ideas

These bars are a complete dessert on their own, but a few things 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 specifically what gives these bars their thin, even 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 try to 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, spices, and sometimes other additives mixed in.

Using it in this recipe would make the bars far too sweet and the spice balance would be off. Make sure the label says 100% pumpkin or pumpkin puree — nothing else.

Why did my frosting turn out runny?

Two likely causes: the cream cheese or butter was too soft (almost melted rather than just room temperature), or the bars weren’t fully cooled before you applied the frosting. If the frosting is already on the bars and runny, pop the whole pan in the refrigerator for 30 minutes — the frosting will firm up.

If it’s still in the bowl, add more powdered sugar a few tablespoons at a time until it stiffens.

How do I know when the bars are done baking?

A toothpick inserted in the center should come out clean or with just a few moist crumbs. The top should look set and 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 — pumpkin bars don’t brown significantly on top because of the moisture in the batter.

Can I double the recipe?

You’d need two 10×15 pans to double it. Don’t try to fit a double batch into one pan — the bars will be too thick and won’t bake evenly.

The recipe itself doubles without issue; just bake the pans separately or on two racks (rotating them halfway through) if your oven can fit both.

How far in advance can I make these?

Up to 2 days ahead fully frosted, stored covered in the refrigerator. For longer storage, freeze the bars unfrosted (up to 2 months), thaw overnight in the fridge, then make fresh frosting and apply before serving.

The bars actually cut more cleanly after a night in the fridge, so making them a day ahead is genuinely the better approach.

Related Recipes

If you liked these pumpkin bars, here are a few more fall desserts worth bookmarking:

• 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