Rice Krispie Treats with Marshmallow Fluff
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These rice krispie treats with marshmallow fluff are made using just 4 simple ingredients! These gooey treats take just 8 minutes to make, no baking required.

These marshmallow fluff rice krispies are a fun twist on a classic treat! These rice krispie treats taste more like the storebought version you know and love since those also use marshmallow fluff.
If you’re looking for a rice krispie treat recipe made with marshmallows though, I’ve totally got you covered! Check out my favorite chocolate covered rice krispie treat recipe.
Why You’ll Love My Rice Krispie Treats with Marshmallow Fluff
- You only need 4 simple pantry ingredients, that’s it!
- This is a no bake recipe, so no need to turn on the oven and they take almost no time to make.
- You can customize your marshmallow fluff rice krispie treats by adding sprinkles, mini chocolate chips, or some salt for a salty-sweet kick.
- This recipe can easily be made dairy free, so it’s a perfect treat for people with food allergies.
Ingredients Needed

- Butter: you can use regular butter or vegan butter if you’re dairy free.
- Rice Krispies: you can use the branded Rice Krispies cereal or you can use any rice crispy cereal from the grocery store.
- Marshmallow Fluff: this is sometimes called marshmallow creme!
- Vanilla Extract: because we aren’t using a lot of ingredients in this recipe, I recommend using a high quality vanilla extract to give the treats lots of flavor.
Step by Step Instructions

Step 1: Line an 8×8 or 9×9 baking pan with parchment paper and set aside.
Step 2: Pour the rice krispie cereal into a large bowl and set aside.
Step 3: In a large pan, melt the butter over medium heat.
Step 4: Add the marshmallow fluff to the melted butter and stir until combined. Stir in the vanilla extract.
Step 5: Pour the marshmallow fluff mixture into the rice krispies and stir until combined.
Step 6: Pour the mixture into your prepared pan and use a greased spatula or your hands to press the mixture down into an even layer,.
Step 7: You can sprinkle over sea salt and sprinkles. Let the treats set at room temperature or in the fridge. Don’t slice them until they’ve completely set.

Expert Tips
- Need to make these rice krispie treats for a crowd? Double the recipe and use a 9×13 baking pan!
- Rice krispie treats made with marshmallow fluff are softer than regular rice krispie treats, so make sure that once you’ve poured the mixture into the pan you firmly press down.
- If you’re using a 9×9 pan instead of an 8×8 pan, just note that the bars will be slightly thinner.
- Use seasonal sprinkles or seasonal rice krispies cereal for Christmas, Halloween, or Valentine’s Day!
Storage Instructions
Store the rice krispie treats in an airtight container at room temperature for up to 5 days.
More Recipes You’ll Love
If you make this recipe, let me know how it went in the comments below, I’d love to hear from you! You can also tag me on Instagram or Facebook so I can check it out!

Rice Krispie Treats with Marshmallow Fluff
Ingredients
- 6 Tablespoons (80 g) butter, (regular or dairy free)
- 1 teaspoon real vanilla extract
- 5 cups (140 g) Rice Krispies cereal
- 7 oz marshmallow fluff
- flakey sea salt or sprinkles, for topping, (optional)
Instructions
- Line an 8×8 or 9×9 baking pan with parchment paper.
- Pour the rice krispie cereal into a large bowl and set aside.
- In a large pan, melt the butter over medium heat.
- Add in the marshmallow fluff and stir with the melted butter until combined. Stir in the vanilla extract.
- Pour the butter and marshmallow fluff mixture into the bowl of rice krispies and stir until fully combined.
- Add the mixture into your lined pan and use a greased spatula or your hands to firmly press the mixture down into an even layer.
- Sprinkle sea salt or sprinkles over top if desired! Let the mixture sit at room temperature or in the fridge until fully set.
Equipment
Video
Notes
The calorie information provided for this recipe is an estimate. The accuracy of the calories listed is not guaranteed.

10 stars! easy and delicious