Pumpkin Spice Rice Krispie Treats are everything you love about the classic marshmallow bar, with an autumn-inspired twist. Imagine a cozy blend of cinnamon, nutmeg, and just the right touch of pumpkin that wraps around every crunchy bite. These treats offer nostalgic comfort with a seasonal flavor upgrade that makes them impossible to resist.

Perfect for fall gatherings, bake sales, or simply cozying up with a cup of coffee, these no-bake bars bring warmth and charm in every square. Whether you’re hosting a Halloween party or just want an easy treat with a little spice, these Pumpkin Spice Rice Krispie Treats deliver festive vibes with minimal effort.

Preparation Phase & Tools to Use

Making these treats is incredibly easy, but a few tools will make all the difference in achieving that gooey perfection:

Large Non-Stick Pot: Essential for melting the butter and marshmallows evenly without burning. The non-stick surface ensures easy cleanup.
Silicone Spatula: This will be your best friend for mixing the sticky marshmallow and cereal mixture. Its flexibility helps scrape every last bit.
9×13-inch Baking Dish: Perfect size for spreading and setting the treats. Using parchment paper or greasing it beforehand makes removal a breeze.

Measuring Cups & Spoons: Precision is key when balancing the spice blend and marshmallow ratio. You don’t want too much or too little of that pumpkin spice!
Wire Rack (optional): If you’re drizzling a glaze or icing, cooling on a rack prevents sogginess and helps the topping set evenly.

With just these simple tools, you’re set up for sticky, spiced success!

Ingredients for the Pumpkin Spice Rice Krispie Treats

Each ingredient plays a key role in building the perfect spiced bite:

Unsalted Butter: Adds richness and helps melt the marshmallows into a smooth, cohesive base.
Mini Marshmallows: The sweet, sticky binder that holds everything together and gives the treats their chewy texture.

Pumpkin Puree: A small amount gives that authentic pumpkin flavor without making the mixture too wet.
Pumpkin Pie Spice: The hero of the flavor profile—a cozy blend of cinnamon, nutmeg, ginger, and cloves.
Vanilla Extract: Balances the spices and deepens the overall flavor.

Rice Krispies Cereal: The classic crunch base that carries all the gooey goodness.
White Chocolate or Icing (optional): For drizzling on top—adds a sweet finish and festive look.

How To Make the Pumpkin Spice Rice Krispie Treats

Step 1: Melt the Butter and Marshmallows

In a large non-stick pot over medium heat, melt the unsalted butter. Add in the mini marshmallows and stir continuously with a silicone spatula until fully melted and smooth.

Step 2: Stir in Flavor

Once the mixture is smooth, stir in the pumpkin puree, pumpkin pie spice, and vanilla extract. Mix well until everything is fully incorporated and the color is a warm, pumpkiny hue.

Step 3: Add the Cereal

Remove the pot from heat and immediately fold in the Rice Krispies cereal. Stir gently but thoroughly until every piece is coated in the spiced marshmallow mixture.

Step 4: Press into Pan

Transfer the mixture into a greased or parchment-lined 9×13-inch baking dish. Use a lightly greased spatula or wax paper to press the mixture evenly into the pan. Don’t press too hard, or the treats can become too dense.

Step 5: Add Optional Drizzle

Once slightly cooled but still soft, drizzle with melted white chocolate or icing for extra flair. Let it cool completely before slicing into squares.

Serving and Storing Pumpkin Spice Rice Krispie Treats

These Pumpkin Spice Rice Krispie Treats are best served at room temperature. Once cooled and cut into squares, place them on a festive serving platter or wrap them individually for party favors. They’re excellent for lunchbox treats, dessert buffets, or autumn bake sales.

To store, keep them in an airtight container at room temperature for up to 4 days. If you’re in a warmer climate or your home is particularly humid, refrigerating them is fine—just be sure to bring them back to room temp before serving so they maintain that soft, chewy texture.

For longer storage, you can freeze them (without the white chocolate drizzle) by wrapping each square in plastic wrap and placing them in a freezer-safe bag. Defrost at room temp before enjoying.

Frequently Asked Questions

How long do these treats stay fresh?

They stay fresh for about 3 to 4 days when stored in an airtight container at room temperature.

Can I use regular marshmallows instead of mini?

Yes, just chop them into smaller pieces to help them melt evenly. Mini marshmallows are ideal because they melt quickly and smoothly.

Is canned pumpkin the same as pumpkin pie filling?

No—you want pure canned pumpkin (pumpkin puree), not pumpkin pie filling, which contains added sugars and spices that can throw off the balance.

Can I use brown butter for more flavor?

Absolutely! Browning the butter first adds a nutty, rich depth to the flavor. Just watch it carefully so it doesn’t burn.

Can I skip the white chocolate drizzle?

Of course! It adds a pretty finish and a touch of sweetness, but the treats are delicious even without it.

How do I keep them from sticking to the pan?

Use parchment paper or grease the pan well with butter or non-stick spray. You can also lightly oil your hands or a spatula when pressing the mixture into the pan.

Want More No-Bake Dessert Ideas?

If these Pumpkin Spice Rice Krispie Treats warmed your heart, here are more no-bake and easy-to-make favorites to explore from Life With Olivia:

No-Bake Mini Banana Cream Pies with a creamy, dreamy filling.

Coconut Snowballs for a bite-sized holiday delight.
Paula Deen’s 5-Minute Fudge that’s dangerously easy and ultra chocolatey.
Orange Dreamsicle Salad when you want sweet and citrusy in one spoonful.

The Best 5 Halloween Recipes for spooky-season snacking.

Save This Recipe for Later

📌 Save this recipe to your Pinterest dessert board so you can come back to it any time: Follow me on Pinterest @scherer29.

And let me know in the comments how yours turned out. Did you go bold with the pumpkin spice? Did you try dark chocolate instead of white?

I love hearing your tweaks and tips. Share your success stories or ask questions—let’s inspire each other in the kitchen!

Pumpkin Spice Rice Krispie Treats

Author: Olivia McKenney
Total Time: 15 minutes

Yield: 16 squares
Diet: Vegetarian

Print Recipe

Description

These Pumpkin Spice Rice Krispie Treats are a cozy fall twist on a classic treat. With warm spices, a hint of pumpkin, and gooey marshmallows, each bite delivers sweet, seasonal comfort. No baking required—just simple steps and big flavor.