Rice Krispie Treats with Marshmallow Fluff

Rice Krispie Treats with Marshmallow Fluff

But make ’em extra chewy… with browned butter… I’ll show you how…

If you’ve made Rice Krispie Treats with Marshmallow Fluff before you know that they’re good. Like, so good. They’re missing a little something that the OG ones have and that’s the chewy factor. I’m here to help friends.

Rice Krispie Treats with Marshmallow Fluff

my foodie Chatter

I have been deprived of RK treats for a long time because my vegetarian daughter doesn’t eat marshmallows. And I’ve tried… oh how I’ve tried… to come up with a solution because I really, really love those chewy little squares. I’ve tried making them with the vegan marshmallows that I buy for her, which fyi, are perfect for adding to cookies and other baked goods like these, because they don’t melt. But that is precisely why they don’t work for krispie treats – they don’t melt. I have tried. And tried, and tried. I have the biceps to prove it.

But!! I recently discovered by way of actually reading the jar, that marshmallow fluff does not contain gelatin which is the offending ingredient that keeps my girl from eating them. This is amazing news and the inspiration for the creation of this recipe. If you google a few recipes though, you’ll see that Rice Krispie Treats with Marshmallow Fluff are described as delicious, but not chewy. This was not acceptable to me. So I fixed it.

Sidebar – is it Rice Krispie Treats or Rice Crispy Treats? Or Rice Krispy Treats? Anyone?

Rice Krispie Treats in pan

Rice Krispie Treats with Marshmallow Fluff, how to make them…

I think at this point we all know very well how to make Rice Krispie Treats and much like a shampoo bottle, instructions on the packaging are kind of redundant, no?

However, because I’ve mixed things up a bit I’ll give you the low down.

Melt your butter in a large pot over low-medium heat – no higher!! Let the butter brown and then add in and corn syrup. Let it bubble for a couple of minutes and then take it off the heat. Stir in the fluff, some vanilla and a handful of mini marshmallows if you like. Pour in the cereal and stir well. Really put some muscle into it.

Press the whole works into a pan, muster up some patience and let them cool. Cut into squares and serve.

Rice Krispie Treats with Marshmallow Fluff

Rice Krispie Treats with Marshmallow Fluff Recipe ingredients, tips, substitutions:

The heat – one of the keys to chewy marshmallow treats is to keep the heat low. If you’ve ever made the mistake of using high heat then you know what it makes… marshmallow treat rocks. Let’s not.

Butter – salted butter. If you use unsalted butter then add a little salt to the mixture. I like to let it brown before adding in the corn syrup because it really elevates the flavour of these, but you don’t have to brown it if you don’t want to.

Corn Syrup – this is the change we’ve made to give these treats the chew factor other versions are missing.

Rice Krispie Treat Variations – so many things you can do with these…

  • add in a handful of chocolate chips or m&ms
  • add 1/2 cup peanut butter to the butter/corn syrup mixture
  • throw in some white chocolate chips and some sprinkles
  • melt 1/2 cup chocolate chips and spread them on top of the squares before you cool & cut them
  • sub out one cup of the Krispies with Froot Loops or Fruity Pebbles

Rice Krispie Treats with Marshmallow Fluff

interested in more easy dessert recipes to try?

Rice Krispie Treats with Marshmallow Fluff
Rice Krispie Treats with Marshmallow Fluff

Rice Krispie Treats with Marshmallow Fluff

These super chewy Marshmallow Fluff Rice Krispie Treats are easy to make, no bake and so dreamy.
4.88 from 8 votes
Prep Time 5 minutes
Cook Time 5 minutes
Course Dessert
Cuisine American
Servings 16 squares


  • 1/4 cup butter
  • 1/4 cup corn syrup
  • 1 7 oz jar marshmallow fluff
  • 1 tsp vanilla
  • 6 cups Rice Krispies
  • *optional 1 cup mini marshmallows I use vegan ones


  • Melt the butter over low-medium heat in a large pot. Allow it to get brown and then add in the corn syrup. Bring to a simmer and allow to bubble for about 2 minutes.
  • Remove from the heat and stir in the marshmallow fluff, the vanilla and the mini marshmallows (if using). Stir until well combined.
  • Stir in the Rice Krispies and stir until all well combined.
  • Press into an 8×8 pan, allow to cool and then cut into squares and serve.
Keyword Rice Krispie Treats with Marshmallow Fluff
Tried this recipe?Let us know how it was!

Let me know what you think below and if you like this Rice Krispie Treats with Marshmallow Fluff Recipe (aka Rice Crisp Treats with Marshmallow Flurr ;)) I know you’ll also love my Turkey Smash Burgers because I think they would be the perfect meal to eat with these!

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