Cookies & Cups > Recipes > Dessert > Krispie Treats > Fluffernutter Sandwich Krispies

Fluffernutter Sandwich Krispies

These Fluffernutter Krispie Treats are fantastic! And super easy!

Side view of fluffernutter sandwich krispie squares on a plate

There are a few things that I have learned as I have gotten older…
I’ve learned that flat front pants are better than pleated.
I’ve learned that classy isn’t in how much money you have, but how you treat people.
I’ve learned that when in doubt, choose red nail polish.
I’ve learned that you shouldn’t use a Groupon for Botox.
And I’ve also learned that a no-bake dessert is equally as delicious as it’s baked cousin.

I’m not saying this because I bathe in marshmallow and butter. I’m saying this because it’s a true fact.
You don’t have to agree with me here, but you certainly can’t disagree with me.

So let’s talk today.
About krispie treats.
My love.
My boo.

And today we will talk about stuffing krispie treats.
Because it’s easy. And because it just feels right.

Fluffernutter sandwich crispy squares wrapped with a strip of parchment and string
Honey Bunches of Oats cereal in a mixing bowl
Honey Bunches of Oats cereal in a mixing bowl with melted butter and marshmallows
Cereal and marshmallow mixture pressed into a jelly roll pan
A jelly roll pan of cereal and marshmallow mixture being cut in half
A collage of two photos of marshmallow cereal mixture with a glob of fluff on one and peanut butter on the other
Peanut butter spread on marshmallow cereal bar
Two fluffernutter sandwich krispies stacked on top of each other

So here we are…Fluffernutter Sandwich Krispies.
Not technically a “krispie” because I used “Honey Bunches of Oats”…don’t argue.
All you do is take your cereal…
Mix it up with some marshmallow and butter…
Now here’s the trick…spread it out thin in a jelly roll pan (15×10 in)…
Let the stuff cool for a beat and then slice it in half.
Spread one side with Marshmallow Fluff and the other with peanut butter…
Then carefully lift up one side and place on top of the other.
Simple dimple.
There you have it…stuffed krispie treats.

Have a spectacularly great July 4th!!!

clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

Fluffernutter Sandwich Krispies

5 Stars 4 Stars 3 Stars 2 Stars 1 Star No reviews


makes 20 bars


  • 1/4 cup butter
  • 1 (10.5 oz) bag mini marshmallows
  • 6 cups Honey/Nut cluster cereal (I used Honey Bunches of Oats)
  • 3/4 cup peanut butter
  • 1 cup Marshmallow Fluff or Creme


  1. Spray a 15x10x1-inch pan with cooking spray.
  2. In a large saucepan on low heat melt butter. Add mini marshmallows to melted butter and sit frequently until marshmallows are melted.
  3. Remove from heat.
  4. Stir in cereal.
  5. Spread the cereal mixture evenly into the prepared pan, pressing gently so it’s even.
  6. Let cool for 10 minutes.
  7. When cooled, cut the entire rectangle in half, lengthwise.
  8. Spread Fluff on one side, peanut butter on the other and then sandwich the two sides together.
  9. Cut into squares when ready to serve.


store in an airtight container for up to 2 days.

Want To Save This Recipe?

Find more recipes like this:

Rate this recipe and share a comment

Your email address will not be published. Required fields are marked *

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star

I accept the Privacy Policy

61 comments on “Fluffernutter Sandwich Krispies”

  1. I love your website! I found it via pinterest. I love how simple the reciepes are and they all sounds amazing. Keep blogging! 🙂

  2. OH…just oh. These look fabulous. I’ve been craving a fluffernutter sandwich for days & haven’t made one. These sound even better than the sandwich!

  3. I love Honey Bunches of Oats and I love Fluffernutter sandwiches, so these treats are right up my alley. They sound so good and look so cute. Can’t wait to make them!

  4. Jen @ Jen's Favorite Cookies

    I’m feeling this one. AND I have marshmallow fluff in my pantry that needs to be used. Fantastic idea!!

Scroll to Top