Rice Krispies are an iconic treat, but making them with marshmallow fluff is a fun twist on a classic. You're going to love making rice Krispie treats with marshmallow fluff! They're soft, gooey, and oh-so-perfect in every square.

Rice krispie treats are iconic snacks that have been around for ages, but traditionally they're made with mini marshmallows, not fluff. Making rice crispy treats with marshmallow cream gives us the same great taste but without the chewy consistency.
For some, traditional rice krispie treats can be a challenge to eat. But, rice crispy treats with marshmallow fluff, are soft enough that they practically fall apart in your hands. These make them a game changer for all of us struggling to eat chewier or firmer foods.
If you want more rice crispy treat recipes, check out my Oreo Rice Krispie Treats, Rainbow Rice Krispie Treats, and Chocolate Peanut Butter Rice Krispie Treats.
Why This Recipe Works
- Simple ingredients. You just need 3 basic ingredients to make this recipe, making it very simple and easy and keeping all shopping minimal.
- Basic steps. This recipe is no harder to make than any other rice krispie treat recipe, as you'll melt butter, soften the marshmallow and add in the cereal. This is a great recipe for beginners.
- It's quick! Since marshmallow cream is already pretty soft, this recipe is actually quicker to come together than you may think. The mixture comes together within just minutes flat.
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🥘 Ingredients
Marshmallow fluff- You'll need a jar of marshmallow fluff or marshmallow creme to make this recipe. If you find a jar that's an ounce or two bigger than requested, it's fine to use it instead. I've noticed that different jars/brands and stores carry different sized containers.
Rice Crispy cereal- Use your favorite brand of crispy cereal for this recipe. I like to opt for whichever is the cheapest on the shelf.
Butter- You can use salted or unsalted butter for this recipe. I personally prefer salted butter because I always have it on hand, but either one will work.
For specific quantities, see the recipe card below.
🍽 Equipment Needed
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🔪 Instructions
Check out how to make rice krispie treats with marshmallow fluff with these simple step-by-step instructions:
Grease the inside of an 8x8 baking dish with softened butter and set aside.
Add your butter to a large pot over medium-low heat. Cook until melted.
Add in the marshmallow fluff by using a rubber spatula to scrape the inside of the jar as best as you can.
Stir until the fluff seems fully incorporated and softened.
Remove the pot from the heat.
Add in the cereal.
Stir in the rice crispy cereal until fully coated.
Transfer the cereal mixture to the prepared baking dish and use greased hands or a spatula to press down on the cereal and compact it into the dish. It helps when using something butter coated as the cereal is less likely to stick to butter.
Allow the cereal to cool and set for an hour or two before slicing and serving.
🍴 Recipe Tips
Greasing your pan can be done with butter or nonstick cooking spray.
When you press the Krispies into the pan, it really helps to have your hands greased too. This prevents it from sticking. So either rub softened butter on your hands or spray your palms with cooking spray.
Another huge tip is to make them over medium/low heat. The lower the heat the longer it will take but it prevents overcooking the marshmallows and allows them to turn out perfect and gooey. So this is also very important for avoiding brittle treats later.
Allowing the cereal treats to cool for at least an hour will make them much easier to serve them up and slice as well. But a good trick to get them out of the pan is to line it with parchment paper so they come out easier and you don't need to slice them in the pan.
👩🏻🍳 Storage
Room Temp
You can store these Rice Krispie treats in an airtight container or zipper topped baggie for up to a week or two at room temperature. I recommend eating them sooner rather than later as they'll taste best when fresh.
Freezer
Rice Krispies are very freezer friendly. To freeze your treats, place them in an airtight container or individually wrap serving-sized squares in plastic wrap before placing them in a freezer-safe container. Then freeze for up to 3 months. Thaw at room temperature before eating. They won't take long to thaw!
💭 FAQs
Yes, absolutely! Simply use any margarine instead of butter and follow the recipe as requested. The end result should be a soft texture that tastes fabulous. Another great alternative is to use coconut oil instead of butter, but it will leave a coconut flavor behind.
If you overcook, overstir, or overheat your marshmallows and butter then you can easily end up with hard cereal treats. I recommend cooking at a low to medium temperature. Slow might take longer but it won't overheat and stirring every once in a while keeps you from overworking the sugars too.
While there is no dairy in these treats, they are not vegan-friendly. Marshmallows contain an ingredient that is not vegan friendly (gelatin) and cereal would need to be purchased specifically labeled as vegan.
More great snack and treat recipes to check out soon
- Red Velvet Rice Krispie Treats
- Rice Krispie Treats with Chocolate Chips
- Dairy Free Rice Krispie Treats
- Peanut Butter Rice Krispie Treats
📖 Recipe
Rice Krispie Treats with Marshmallow Fluff
Ingredients
- 4 Tablespoons Butter ($0.38)
- 7 ounces Marshmallow fluff ($1.62)
- 5 cups Rice Krispies Cereal ($0.90)
Instructions
- Grease the inside of an 8x8 baking dish with softened butter and set aside.
- Add your butter to a large pot over medium-low heat. Cook until melted.
- Add in the marshmallow fluff by using a rubber spatula to scrape the inside of the jar as best as you can.
- Stir until the fluff seems fully incorporated and softened.
- Remove the pot from the heat.
- Stir in the rice crispy cereal until fully coated.
- Transfer the cereal mixture to the prepared baking dish and use greased hands or a spatula to press down on the cereal and compact it into the dish. It helps when using something butter coated as the cereal is less likely to stick to butter.
- Allow the cereal to cool and set for an hour or two before slicing and serving.
Notes
Recipe Tips
- Greasing your pan can be done with butter or nonstick cooking spray.
When you press the Krispies into the pan, it really helps to have your hands greased too. This prevents it from sticking. So either rub softened butter on your hands or spray your palms with cooking spray. - Another huge tip is to make them over medium/low heat. The lower the heat the longer it will take but it prevents overcooking the marshmallows and allows them to turn out perfect and gooey. So this is also very important for avoiding brittle treats later.
- Allowing the cereal treats to cool for at least an hour will make them much easier to serve them up and slice as well. But a good trick to get them out of the pan is to line it with parchment paper so they come out easier and you don't need to slice them in the pan.
Storage
- Room Temp. You can store these Rice Krispie treats in an airtight container or zipper topped baggie for up to a week or two at room temperature. I recommend eating them sooner rather than later as they'll taste best when fresh.
- Freezer. Rice Krispies are very freezer friendly. To freeze your treats, place them in an airtight container or individually wrap serving-sized squares in plastic wrap before placing them in a freezer-safe container. Then freeze for up to 3 months. Thaw at room temperature before eating. They won't take long to thaw!
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