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These pumpkin rice krispie treats are made with actual pumpkin puree, not just orange food coloring! A quarter cup is all it takes to carry real pumpkin flavor through a whole pan of gooey marshmallow and crispy cereal, and the whole thing comes together in one pot in about 15 minutes. No oven, which is the entire point in October when every rack is already spoken for.
I keep a batch around all fall because they’re the one dessert I never have to plan for. Cut them into squares, or press them into little pumpkins if you’re building out a tray of Halloween dessert recipes. Either way they’re done before the oven would have finished preheating.
Quick Look: Pumpkin Rice Krispie Treats
- 🎃 What it is: No bake cereal treats made with real pumpkin puree, warm spice, and a white chocolate drizzle.
- ⭐ Why it works: A quarter cup of puree flavors all six cups of cereal without costing you the crunch.
- 💛 Why you’ll love it: One pot, no oven, and nothing to chill overnight before you can serve them.
- ⚠️ What to watch for: Cutting before the 30 minutes are up. They tear instead of slicing clean.
- 🍳 Pan notes: An 8×8 gives you thick squares, a 9×9 gives you thinner ones. Both work.
- ❄️ Make ahead: One to two days at room temperature in an airtight container. Add the drizzle the day of.
- ⏱️ Ready in: 15 minutes active, plus 30 minutes to cool before slicing.
Why This Recipe Works
Most of the versions you’ll find online aren’t pumpkin at all. They’re classic cereal treats tinted orange with food coloring and cut into pumpkin shapes, which is adorable, but you take a bite and it tastes like a plain rice krispie treat wearing a costume. A few of the biggest recipes out there say outright that real pumpkin would wreck the texture.
It doesn’t. The trick is restraint. A quarter cup of pumpkin puree stirred into the melted marshmallow is enough to flavor all six cups of cereal without weighing the mixture down, and the pumpkin pie spice and cinnamon do the rest of the lifting. Go heavier on the puree chasing more flavor and you start trading away the snap, which is the part nobody wants to lose. A quarter cup is the sweet spot I found!
The white chocolate drizzle isn’t just decoration either. White chocolate is sweet and a little milky, and it plays against the warm spice the same way cream cheese frosting plays against carrot cake. I started adding it as an afterthought one year and now I don’t make them without it.
They’re also one of the few fall desserts that works for a crowd with zero planning, which is why they end up on the table next to my Thanksgiving dessert recipes every single year. Fifteen minutes of active time, one pot, and a pan that slices into nine generous squares or a couple dozen little pumpkins depending on how much patience you have that day.
Table of Contents
Key Ingredients
Here’s what you’ll need. Scroll down to the recipe card for the full measurements.
- Unsalted butter: adds richness and helps the marshmallows melt smoothly. Unsalted matters here, since marshmallows are already sweet and salted butter throws the balance sideways.
- Mini marshmallows: the binder, and what gives these their chew. Buy a fresh bag. Stale marshmallows are the single biggest reason cereal treats turn out hard.
- Pumpkin puree: the whole reason this recipe exists. Make sure it’s 100% pumpkin and not pumpkin pie filling, which comes pre-sweetened and pre-spiced and will throw the flavor off completely.
- Pumpkin pie spice: the warm blend that makes these read as fall instead of just sweet. Store bought is fine, or mix up a jar of my homemade pumpkin pie spice, which costs a fraction of those tiny five dollar containers.
- Cinnamon: a little extra on top of the spice blend. It deepens the pumpkin and keeps the flavor from going flat.
- Vanilla extract: rounds everything out and takes the sharp edge off the spice.
- Rice Krispies cereal: the crunch. Any crispy rice cereal works here, store brand included.
- White chocolate chips: for the drizzle. Technically optional, but see above.
Substitutions And Additions
- Chocolate pumpkin rice krispie treats: fold half a cup of mini chocolate chips in once the pot is off the heat, or swap the white chocolate drizzle for melted semisweet. Chocolate and pumpkin spice get along better than people expect, and if you want to go all the way in that direction I have a full recipe for classic chocolate rice krispie treats.
- Rolo version: press unwrapped Rolos into the top while the mixture is still warm, spacing them so every square gets one. The caramel centers stay soft for days.
- Pumpkin pie style: stir half a cup of crushed graham crackers in with the cereal. It adds that crust note and pushes these closer to a handheld slice of pumpkin pie. My pumpkin pie bars are the move if you want the real thing.
- Brown the butter: melt the butter and keep going until it smells nutty and the milk solids turn golden, then carry on with the marshmallows as written. It costs you about four extra minutes and adds a lot of depth.
- Flaky salt: a pinch over the white chocolate before it sets. It cuts the sweetness and makes the spice pop.
How to Make Pumpkin Rice Krispie Treats
- Grease an 8×8 or 9×9 inch pan with cooking spray, or line it with parchment. Set it aside. Melt the butter in a large pot over medium heat. Add the marshmallows and stir constantly until they’re melted and smooth, then pull the pot off the heat the moment they are. Cooking marshmallows past that point drives off moisture and gives you hard treats.
- Stir in the pumpkin puree, pumpkin pie spice, cinnamon, and vanilla.
- Until the mixture is smooth and evenly orange all the way through.
- Fold in the Rice Krispies off the heat, turning the mixture over on itself until every piece of cereal is coated.
- Transfer to your pan and press it down evenly. Press gently, not hard. The more you compact it the denser and tougher the squares get, and there’s no fixing it once it sets.
- Melt the white chocolate chips in a microwave safe bowl in 30 second bursts, stirring between each one, then drizzle over the top.
- Let them cool for 30 minutes before cutting. This is the step everyone skips, and it’s the whole difference between clean squares and a pan of crumbles.
How To Shape Them Into Pumpkins
If you want the pumpkin shaped version for a Halloween party, you have two options and both work with this same batch.
- Cookie cutter method: press the mixture into the pan as usual, let it cool the full 30 minutes, then stamp out shapes with a pumpkin cookie cutter. You’ll get fewer servings and a pile of scraps, so plan on a batch and a half if you need a full tray. The scraps are excellent, for the record.
- Hand rolled method: let the mixture cool about 10 minutes so it’s warm but handleable, grease your hands with butter or a little cooking spray, and roll it into balls. Flatten each one slightly, press a few grooves down the sides with the back of a butter knife, and push a pretzel stick or a piece of a Tootsie Roll into the top for the stem.
For either version, a couple of drops of orange food coloring stirred into the marshmallow will brighten the color, and black icing in a piping bag with a thin tip turns them into jack-o’-lanterns. That last part is a good job to hand to the kids while you deal with the pot. If you’re doing a full spread, these Halloween sugar cookie bars are the other thing I always end up making.
Expert Tips
A few things I’ve picked up making these on repeat every fall.
- Line the pan with parchment and leave an overhang on two sides. You can lift the whole slab out and cut it on a board, which is far easier than sawing at it inside the pan and nicking up your nonstick.
- Use fresh marshmallows. Check the date on the bag and give it a squeeze. Fresh ones feel soft and bouncy, stale ones will give you a pan you can’t cut through.
- Pull the pot off the heat the second the marshmallows go smooth. Every extra minute on the burner costs you chew.
- Press gently. You want the mixture to hold together, not compress into a brick.
- Butter your knife before cutting. It keeps the marshmallow from dragging and gives you clean edges.
Pumpkin Rice Krispie Treats FAQs
Yes, and the amount is what makes it work. A quarter cup of pumpkin puree flavors all six cups of cereal without softening the crunch. Plenty of recipes skip the puree entirely and lean on spice and food coloring instead, but you can taste the difference the second you bite into one that has the real thing in it.
Let them cool to room temperature, then store them in an airtight container. They keep for 3 to 4 days on the counter or about a week in the fridge. You can also make them a day or two ahead for a party, which is what I usually do.
You can. Wrap each square tightly in plastic wrap, then put them in an airtight container or a freezer bag. Thaw on the counter for about an hour before serving and they come back almost exactly the way they went in.
Almost always one of three things. Stale marshmallows are the biggest culprit, so check the date before you buy. Overcooking the marshmallows is the second, since the extra heat drives off the moisture that keeps them soft. Pressing the mixture into the pan too firmly is the third, and it’s the easiest one to fix.
Whisk together 3 parts cinnamon, 2 parts ginger, 1 part nutmeg, 1 part allspice, and half a part cloves. That’s essentially the blend I keep in a jar all fall, and it costs a fraction of what the pre-mixed version sells for at the store.
More Pumpkin Recipe Favorites!
If you made these pumpkin rice krispie treats, leave a star rating and tell me how it went in the comments. I read every single one.
Pumpkin Rice Krispie Treats
Ingredients
- 4 tablespoons unsalted butter
- 10 oz mini marshmallows
- ¼ cup pumpkin puree
- 1 teaspoon pumpkin pie spice
- ¼ teaspoon cinnamon
- ½ teaspoon vanilla extract
- 6 cups Rice Krispies cereal
- ¼ cup white chocolate chips optional
Instructions
- Grease an 8×8 or 9×9 inch pan. Set aside.
- Melt butter in a large pot over medium heat. Add marshmallows and stir until melted.4 tablespoons unsalted butter, 10 oz mini marshmallows
- Stir in pumpkin puree, pumpkin pie spice, cinnamon, and vanilla extract until smooth.¼ cup pumpkin puree, 1 teaspoon pumpkin pie spice, ¼ teaspoon cinnamon, ½ teaspoon vanilla extract
- Remove from heat and stir in Rice Krispies until fully coated.6 cups Rice Krispies cereal
- Press the mixture evenly into the greased pan.
- Melt white chocolate chips in a microwave safe bowl in 300second increments and drizzle over the treats.¼ cup white chocolate chips
- Let them cool for 30 minutes before cutting into squares.
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
The pumpkin puree is the trickiest part of this one. Since it adds extra moisture the marshmallow mixture wouldn’t normally have, cook it just until everything’s smooth and pull it off the heat right away. Let it linger too long and the marshmallow can seize up on you instead of staying stretchy.