When fall is in full swing and you need a quick treat that captures the cozy vibe of the season, Pumpkin Spice Rice Krispie Treats hit the sweet spot. These bars are gooey, spiced just right, and finished with a white chocolate drizzle that brings it all together. Whether you’re hosting a bonfire, prepping lunchbox snacks, or simply craving something festive without turning on the oven, this no-bake dessert delivers major autumn charm.
Think of them as the ultimate twist on a childhood favorite. Classic crispy rice cereal meets marshmallows infused with pumpkin pie spice and a hint of vanilla, all molded into chewy squares that practically scream “cozy sweater weather.” They look beautiful on a dessert board and are always the first to disappear at gatherings.
What Kind of Marshmallows Should I Use?
Mini marshmallows melt more evenly, which helps give you that signature chewy texture without overcooking. But if you only have large ones on hand, just chop them a bit before melting. Look for a fresh bag—stale marshmallows won’t melt as smoothly.

Ingredients for the Pumpkin Spice Rice Krispie Treats
Rice Krispies Cereal – The base of the treats, adding that crispy bite that makes this dessert so fun to eat.
Mini Marshmallows – The key to that classic gooey chew. You’ll melt these down with butter for the binding magic.
Unsalted Butter – Adds rich flavor and helps the marshmallows melt smoothly into a cohesive mixture.
Pumpkin Pie Spice – The star of the flavor show, this warm blend turns basic treats into full-on fall snacks.
Vanilla Extract – Enhances the overall flavor and gives depth to the sweetness.
White Chocolate Chips or Melting Wafers – Optional, but recommended for a sweet finishing drizzle that makes the bars look extra special.
How To Make the Pumpkin Spice Rice Krispie Treats
Step 1: Prep Your Pan
Lightly grease a 9×9 or 9×13-inch baking dish with butter or nonstick spray. Line it with parchment paper for easier removal.
Step 2: Melt the Butter and Marshmallows
In a large saucepan over medium-low heat, melt the butter completely. Add the mini marshmallows and stir continuously until they are fully melted and smooth.
Step 3: Add the Flavor
Once melted, remove from heat and stir in the pumpkin pie spice and vanilla extract. Mix well so the spices are evenly distributed.
Step 4: Stir in the Cereal
Immediately add the Rice Krispies cereal to the marshmallow mixture. Stir quickly but gently, folding until all the cereal is coated.
Step 5: Press Into Pan
Transfer the mixture into your prepared dish. Use a buttered spatula or clean, greased hands to press the mixture evenly into the pan. Don’t compact it too hard or it may become too dense.
Step 6: Add the White Chocolate Drizzle
Melt the white chocolate chips or wafers in the microwave in 20-second intervals, stirring in between until smooth. Drizzle over the top of the treats.
Step 7: Cool and Slice
Let the bars cool completely at room temperature for about 30 minutes. Lift them out using the parchment and cut into squares.
How to Serve and Store Pumpkin Spice Rice Krispie Treats
Serve these treats at room temperature for the best texture—soft and chewy with a hint of crunch. They’re perfect on a Halloween dessert platter, tucked into a lunchbox, or brought to a fall party.
To store, place them in an airtight container at room temperature. They’ll stay fresh for up to 3 days. If you need to store them longer, individually wrap and freeze them for up to 1 month. Let thaw at room temperature before serving.
Frequently Asked Questions
Can I add canned pumpkin to the recipe?
While tempting, adding actual pumpkin puree can make the treats soggy. It’s best to stick with pumpkin spice for flavor without changing the texture.
How do I keep Rice Krispie treats from getting hard?
Avoid overcooking the marshmallow mixture. Once melted and smooth, remove from heat immediately. Also, don’t press too firmly into the pan.
Can I use flavored marshmallows?
You can, but it might compete with the pumpkin spice. Stick to plain marshmallows for the most balanced flavor.
What if I don’t have white chocolate?
These are still delicious without the drizzle! But you can substitute with milk or dark chocolate if you prefer a different flavor contrast.
Can I double the recipe?
Absolutely. Just use a larger pan, like a 9×13-inch dish, and adjust your cooling time slightly.
Are these gluten-free?
Rice Krispies cereal contains malt flavoring derived from barley, which is not gluten-free. You can swap in a certified gluten-free crispy rice cereal instead.
Want More No-Bake Dessert Ideas?
If these Pumpkin Spice Rice Krispie Treats gave you the cozy fall feels, here are a few more no-bake and seasonal recipes you might love:
- Condensed Milk Snow Cookies – Melt-in-your-mouth holiday bliss with sweet milk and powdered sugar.
- Cherry Cheesecake Puppy Chow – A fruity, creamy twist on a classic snack mix.
- Brown Butter Dulce de Leche Rice Krispie Treats – Elevate your crispy treats with rich caramel tones.
- Zesty Lemon Oatmeal No-Bake Cookies – Refreshing citrus with a chewy texture.
- Heaven in a Bowl – Layers of sweetness, crunch, and cream.
And for even more everyday treats and seasonal goodies, check out my Pinterest board, Life with Jam.
Save This Pin + Share Your Results
📌 Save this recipe to your Pinterest dessert board so you can come back to it any time.
And let me know in the comments how yours turned out. Did you swirl in some cinnamon chips? Try a dark chocolate drizzle instead?
I love hearing how others make these recipes their own. Questions are welcome too—let’s help each other bake smarter.

Pumpkin Spice Rice Krispie Treats
- Total Time: 15 minutes
- Yield: 16 squares
- Diet: Vegetarian
Description
Pumpkin Spice Rice Krispie Treats are the perfect no-bake fall dessert. Soft, gooey, and filled with warm autumn spices, these chewy squares are topped with a sweet white chocolate drizzle for a cozy treat that’s easy to whip up in minutes.
Ingredients
6 cups Rice Krispies cereal
1 10-ounce bag mini marshmallows
4 tablespoons unsalted butter
1 ½ teaspoons pumpkin pie spice
1 teaspoon vanilla extract
⅓ cup white chocolate chips or melting wafers (optional)
Instructions
1. Lightly grease a 9×9 or 9×13-inch pan with butter or nonstick spray and line with parchment paper.
2. In a large saucepan over medium-low heat, melt the butter completely.
3. Add the mini marshmallows and stir until fully melted and smooth.
4. Remove from heat and stir in the pumpkin pie spice and vanilla extract.
5. Add the Rice Krispies cereal and gently fold until fully coated.
6. Press the mixture evenly into the prepared pan using a greased spatula or hands.
7. Melt the white chocolate in the microwave in 20-second bursts until smooth.
8. Drizzle the white chocolate over the top of the treats.
9. Let cool for 30 minutes at room temperature.
10. Lift out with parchment and cut into squares.
Notes
Use fresh marshmallows for best meltability and texture.
Don’t press the mixture too firmly into the pan—this keeps the bars soft and chewy.
The white chocolate drizzle adds flavor and a finished look, but can be omitted or replaced with milk or dark chocolate.
- Prep Time: 10 minutes
- Cook Time: 5 minutes
- Category: No-Bake Desserts
- Method: No-Bake
- Cuisine: American
Nutrition
- Serving Size: 1 square
- Calories: 145
- Sugar: 12g
- Sodium: 105mg
- Fat: 4.5g
- Saturated Fat: 3g
- Unsaturated Fat: 1g
- Trans Fat: 0g
- Carbohydrates: 25g
- Fiber: 0g
- Protein: 1g
- Cholesterol: 10mg
Keywords: fall treats, no bake, rice krispie, pumpkin spice


