Fluffernutter Cookies, 3 Ingredients!

Phew, what a whirlwind this week has been! I need one of these cookies while I unpack! More about my trip later, we’ve got to talk cookies!

Seriously, wait until you try this recipe. I am literally talking 3 ingredients and about 5 minutes of prep before they are in the oven! Woo Hoo!

I have had this idea in my head for over a week now and had NO idea how they would turn out. Peanut butter and marshmallow are 2 of my favorite ingredients so I had to play around with a cookie! Come to find out they are awesome! My oldest said, Mom these are the best cookies in the whole world! Ok I wouldn’t go that far, but for as easy as they are…yes they are super yummy!

Grab a tall glass of milk and treat the family to these way too easy and oh so fun cookie gems! Hope you all enjoy 🙂

Yes, you heard me right….3 ingredients! Peanut Butter, marshmallow cream and a Large Egg 🙂

Mix, mix, mix

Ready to bake!

Bake 12-15 minutes

Fluffernutter Cookies

1 Cup creamy peanut butter

1 large egg

1 cup marshmallow cream

1. Preheat oven to 350 degrees F. In a large bowl mix the peanut butter and egg until well combined with a spoon. Slowly stir in the marshmallow cream until just combined. You want to see the marshmallow cream not fully incorporated, almost like swirled through. With a small-medium cookie scoop, scoop dough onto a parchment or silpat lined baking sheet. Bake for 12-15 minutes or until baked through. Let cool for 5 minutes on cookie sheet before transferring to a cooling rack. Definitely grab some milk with these bad boys and Enjoy!!

about 18 cookies


Have a great rest of your week and weekend! Stay tuned for pictures of my trip and as always new recipes!!

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136 Responses
  1. Babs

    I made these cookies and they are delicious……….but they do not look anything like your pictures. Mine are very flat & thin. I was disappointed that they were not like your picture. I made two batches and they both turned out thin and flat but tasted delicious! Any idea on what I did wrong?

  2. I think the reason some bakers had a problem was because of the I cookie scoop…the density infusing the cookie scoop keeps them from spreading..My first batch looked like pancakes, as I do noon a cookies coop, but the second batch,I “mounded” the scoops and they came out perfectly..and we’re delicious!
    However, a cookie scoop is now Number One on my next shopping trip!

  3. Rosanne

    I sure would like to put in some chocolate. How would they turn out if you put a cup of chocolate chips in batter?

  4. Such a disappointing recipe! Thought they sounded delicious, however this is the worst tasting cookie I’ve ever had! The “dough” spread like wildfire and the cookies were brittle, stuck to the parchment paper and were basically inedible. Waste of good ingredients!

  5. Jae

    We didn’t have marshmallow flush this time I made them, so I just melted down some mini marshmallows and added a bit of milk to create a cream texture, and they tasted just as good!

  6. Tess

    Just wondering…I want to merge this recipe with a Christmas Mouse cookie recipe so they look like little mice. If I mix all the ingred. very thoroughly so there’s no swirl effect, will the cookie still turn out and bake properly. I’m trying to get a uniform color, no swirl but keep the flavor. What do you think?

  7. Ashlea

    While looking for 3 ingredient cookies, I came across this one… Looks delicious. I am in the process of making them right now. The first batch is out of the oven and look nice and fluffy! My oven made them a little browner than yours turned out, but they look delicious! I put the second batch in on the lower rack, hopefully this doesn’t make them melt or burn!

  8. Arielle

    do you think I could sub peanut butter for soy nut butter? I teach a baking class at a nut free school.

  9. Red

    I just made these. I used a heaping tablespoon to drop them onto a dark cookie sheet with parchment paper as I don’t have a cookie scoop. It def made the cookies bigger than they probably should have been. They did spread out and go flat. The first batch I left in for 12 min. They looked done so I took them out and left them to cool. They weren’t done and completely fell apart when I tried taking them off the tray. I left the second batch in the oven for 16 min. and they came out better, but we’re still breaking apart a bit. The third batch was in the fridge while I was making the first 2 batches. I left these in for 16 min as well because it smelled like they were starting to burn. These also turned out flat and some of them crumbled slightly. All 3 batches had an “uncooked” taste and appearance so it was difficult to tell if they were done. They did taste good, but I consider this an epic fail. Total bummer!

  10. Allyson

    Can you substitute the peanut butter with Trader Joe’s Cookie butter? I know that the consistency is a bit stiffer but didn’t know if that was an option for people with nut allergies.

  11. Hi! I just wanted to let you know that I’m featuring this amazing recipe in my post 102 Gluten Free Cookie Recipies. I’m also pinning it to my Gluten Free Cookie Madness Board. ๐Ÿ™‚

    You are more than welcome to share this amazing resource with your readers or link to this post if you’d like! Thanks so much for the inspiration! Here’s the url: 102 Gluten Free Cookie Recipies

  12. Laura

    These tasted great! But never puffed up like your beautiful pictures…next time I think I might add a little baking powder. Maybe it some of that high altitude business.

  13. sarah

    Mine flattened and tasted burnt even though they weren’t. I even put them in the fridge for an hour before baking to prevent flattening. ๐Ÿ™ So I ate spoonfuls of Fluff instead. Lol

  14. Katy Muir

    Hi, l made the flutternutter cookies and have a question. What type of PB did you use. The batter tasted great, but my cookies spread out so far they were touching each other in the pan. Very flat cookie. I’m thinking it might be the PB?

  15. Sam

    Made these cookies today…came out flat and crumbled when I tried to eat them. I measured everything out fine and used the right sheet pan. There’s so much peanut butter it’s almost inedible…thought these would be good for christmas, but I’m disappointed. ๐Ÿ™ Maybe I did something wrong.

  16. Will try again soon!

    As soon as I saw the recipe, I put the ingelredients together and *tried* to make them. Problem is, I split the amount of pb and fluff, but I forgot to split the egg. This resulted in weird cakey rubbery “cookies”.

    But will try again! Lol.

  17. Marie

    Hi there really want to make these ordered the reese’s peanut and fluff, very excited i live in the UK very difficult to get these ingredients. My fav food EVER is reese’s peanut butter cups mmmmmmmmmmmm

    But if someone could please tell me how much 1 cup is in grams or ounces PLEASE!!! lol desperate to make them.

    Thanks Marie ๐Ÿ™‚ x

  18. Jordan

    Do you think this would work with Nutella instead of PB? or half Nutella, half peanut butter?

    The possibilities are endless…

    1. Will try again soon!

      It’s just my opinion, but isn’t nutella more oily than peanut butter? Also, i thought nutella melted in the oven. I did think about this, but ended up using peanut butter, so it would be cool to try it out

  19. Meredith

    These are great ๐Ÿ™‚ Mine also spread out quite a bit, but I figured they would since I just used a plain ol’ non-stick baking sheet with no SilMat or parchment paper. I’ll probably add some chocolate chips next time too sweeten them up, but I’m definitely keeping this recipe in my arsenal ๐Ÿ™‚

  20. Brooke

    Jenny, I just made these using the same baking equipment as you, but mine also turned out spreading quite a bit. Do you think it could be caused by overmixing (Mine aren’t as marbled as yours) or maybe the egg ratio (too much or too little)? I’m just curious. I’m sure my kids will still eat them! ๐Ÿ˜‰

  21. Wait a second…three ingredients? How is that possible? I think this is a great recipe for teaching smaller children how to cook. You can be very simple and still provide an amazing product. Thanks for sharing!

  22. christine

    okay mine came out flat too! i think i need to decrease the marsh to the pb ratio. I did add mini chocolate chips. YUM!

  23. Megan

    Aw man, I tried these tonight, and…total failure. It was probably user error (I’m new to this whole…cooking/baking thing) but my cookies turned out flat and burny. I also tried to mix in Nutella, because hey, -chocolate-.

    I bet they turn out just fine if you don’t leave them in the oven too long (derp), but mine were totally messed up. Maybe I’ll try again some other time.

    In the meantime, I’ll get my sweets fix by having some of my frozen yogurt.

  24. beth h

    i made these..they were so good..but i HAD to have some chocolate in them..so i chopped up some reeses stix..omgosh..heavenly!! <3 thank you for the recipe!

  25. I have not heard of fluffernutters since leaving New England! I was introduced to them as a sandwich (also 3 ingredients)while living there, but I had never thought of making a cookie out of the combination. They look so easy – easy cookies are good!

  26. diana

    i made these tonight and they burned on the bottom and didn’t fully cook. what the heck did i do wrong?? i put them on parchment paper… epic fail and with only 3 ingredients c:

  27. Chelsea

    I need you to know— YOU SAVED ME WITH THESE COOKIES!
    My son is on the GFCF diet (no gluten & no casein=milk) These have none of that in them, and they are actually YUMMY!!!!! This is the first cookie I have made that tasted like a treat and wasn’t grainy (that’s what the Gluten Free box mixes taste like, grainy…
    THANK YOU SO MUCH FOR THESE! And of course, if you know more amazing GFCF recipes… share! (not that you knew that these were GFCF, but they rock! Again, thank you!)

  28. Amber

    Yummy! Just wanted to let you know that I used a regular baking sheet with parchment paper and natural peanut butter and they turned out great! Plus I’m at high altitude, so that’s not always the case. Can’t wait for my hubby to try these!

  29. My husband and I just made these. We had problems making sure the marshmallow fluff didn’t mix in all the way, so they ended up looking light brown instead of swirly. When they came out, they were really gooey… but they tasted really good!

  30. David

    To help stop the spreading, you can chill the cookie dough before dropping it on the cookie sheet and baking it.

  31. Ok – just discovered your blog and you are killing me with all of these magnificent cookies! I LOVE how easy these are – you will always have the ingredients lying around to make them! And the salt on those chocolate chunk looks like heaven! xxSAS

  32. Joyce

    Oh my God! Fluffernutter but in cookie form! Genius I say! Looks fabulous. I am making these this wknd for sure. Hello!!!!!!!!!!!

  33. Sharon

    Yummy.. the only thing that could make these any better is chocolate. Maybe I’ll try drizzling with or dipping these in chocolate the next time.

    Thank you for a great idea!!

  34. Chris

    I honestly didn’t believe that cookies could be done with 3 ingredients so I HAD to try these as soon as I came on it on StumbleUpon. THEY ARE DELICIOUS!!! Make sure you have a glass of milk ready though because you will need it. Thanks so much for sharing!

    1. Thanks for sharing Chris!! I’ve been so nervous with people telling me their cookies didn’t turn out and I can’t for the life of me figure out why! So glad they worked for you. My kids and I gobble them up, can hardly wait for them to cool ๐Ÿ™‚ Thanks again !

  35. Shannon

    I just tried these and mine came out flat as well. I will definitely give them another try though.

  36. those cookies look amazing!!! i gotta try them! your site is adorable!!!! i’m a newbie with blogging so I’m always lookin around for inspiration!!! keep up the great work!

  37. I have all those awesome Target plates, too!

    I just made these. Some of them spread quite a bit and some of them look just like yours. I did use Skippy Natural (so less sugar, no added oils), probably made the difference. But they are good and are certainly going to get eaten, if not by the boys, by me! ๐Ÿ˜‰

  38. OMG, these look amazing. I can’t wait to make them.

    Do you think you could also make something similar with nutella instead of PB?

    I am going to be having fun baking today. Thank you!

  39. As soon as I saw these I knew I’d be making them tomorrow after work! I hope they turn out ok, since I, too, am going to use a dark cookie sheet. BUT I have a blue silpat liner, so maybe I’ll be fine. I’ll let you know. ๐Ÿ˜‰

      1. Oh, I forgot to ask: Did you use a spoon or a whisk (or electric mixer) to mix the batter? I used a spoon, maybe that “helped” with the going flat??

        1. Hi there, I just used a spoon :). I’m trying to figure out why the cookies are coming out flat for so many people. I just made another batch Sunday and they turned out great. As soon as I can figure it out I’ll share any info I can ๐Ÿ™‚

  40. Monica

    I couldn’t wait to try theses, but they didn’t work too good. I used the same silpat as you did, skippy pb, egg and fluff. They spread out a lot, and the consistency was strange when you bit into them. It seemed like something might be missing, like a bit of flour??? Not sure what went wrong. Was hoping they were as good as they looked! Can’t wait to try some of your others, like the chocolate peanut butter cookies! Thanks!

  41. Now, these are SUPER dangerous!!! I *always* have those ingredients on hand. Oh no. Just in time for bathing suit season. ๐Ÿ˜‰

    PS…I have that same red polka-dot plate….got the LAST one at the store! ๐Ÿ™‚

  42. These must be like the most intense peanut butter cookies ever…and a total throwback to my fluffernutter-filled childhood. Have to make them!

  43. Jamie

    I made these today but they came out completely flat. I don’t know what to do differently as I don’t bake often. What went wrong?

    1. Hmmm, it’s so hard to say with everyone’s baking equipment/ovens so different. All I can tell you is what I use.

      I use this baking sheet for all of my cookies: http://www.amazon.com/gp/product/B000N9Y70C/ref=pd_lpo_k2_dp_sr_1?pf_rd_p=486539851&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=B001SRQU6M&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=16ECCQT6BR8KCQ4T5XEG

      I also use a silpat liner like this one: http://www.kasbahouse.com/images/cookiepan.jpg

      Hope this helps, sorry they turned out flat for you ๐Ÿ™ Did you use the exact peanut butter I did?

      1. Jamie

        I used a reduced fat PB. I wonder if it was too different. I also used a dark cookie sheet with parchment paper.

        I will play with it and see if I can get them to work better next time. They were really good, just flat and a little crispy.

        1. Jessica B.

          I used a dark sheet and parchment with the same flat result…yummy by flat. Maybe that is the culprit!

          1. Cheryl B.

            I definitely think it was due to the dark sheet and parchment because that is what I used and they were flat and burned in less than 10 minutes. I did not read the comments before I made these because I was in a hurry to get them done because I’m leaving for a party. I have a jelly roll pan like Jenny linked and a silpat liner but they were dirty from an earlier baking project and I didn’t have time to wash them. Next time I have fluff in the house, I will try with the different pan and silpat.

  44. Jessica B.

    SO YUMMY! Just took them out of the oven. Mine spread a lot more than yours…tips for next time?

  45. Are you kidding me, right??? OMG!I can’t believe…only those 3 ingredients…A-M-A-Z-I-N-G!!!


    Can’t wait to try this recipe!

    Thanks for posting…


  46. Monica

    Oh my. If these are as good as they look, I’m in trouble! Head to the the store to buy the marshmallow today! Thanks for sharing!

  47. Shannon

    Those are the cutest measuring cups in the world! Where did you get those?! P.S. Those cookies are in the oven right now I can’t wait to try them!!

  48. These look soooo yummy! And my hubby loves PB so he would love them too. I’m off to pick up some marshmallow cream. Thanks for the great recipe!

  49. Oh my gosh, those will be a big hit here! Thanks for all your great recipes, yours is my favorite site for yummy stuff!!

    1. Hailey

      you could switch out the peanut butter for Nutella, or do half peanut butter half Nutella! If you are allergic to nuts, I’m sorry, I can’t help with that :/ this was 5YEARS ago though, so maybe you have already figured this out?

  50. this look amazing. i grew up eating fluffernutter sandwiches and now my kids eat them. of course, it’s a crime that we can’t get marshmallow cream here. this recipe is definitely on my have to make list.

  51. How did you know that Fluffernutters were in my top 5 guilty pleasures? These are GREAT! Talk about the easiest cookies…um…ever? Can’t wait to give these a try!

  52. I had all the ingredients on hand so my 2 year old twins and I just whipped up a batch. I’m excited because my mom is a HUGE fluffernutter fan and she is child sitting for us and now she can enjoy this little treat while she’s here! And WHEN (not if) she runs out she can just make up another batch, they were so quick and easy. Thanks!

    1. Hey Helen,

      I know that London definitely has fluff but I don’t know about the rest of the UK! I just got back from doing my college semester in Italy (where they did not have marshmallow fluff). While I was abroad, I went to the UK for a long weekend and saw fluff in one of the grocery stores and actually brought it back to Italy with me haha!

      mmm I love fluffernutters!

    2. Shelly

      I know this is from 2 years ago, but they sell marshmallow fluff at ASDA! Just thought you should know in case you haven’t figured it out yet ๐Ÿ™‚

    3. emily

      They do sell marshmallow Fluff in U.K., bought mine in Sainsbury’s, or you could buy it on amazon…

    1. BeerMonsterinCookieLand

      I too had a large jar leftover from holiday fudge making, seen this recipe and sooo… YUMMLY good.

      Salad & a Cookie, I rather like that. For me its a beer & a cookie.

      “Beer is proof that God loves us and wants us to be happy.”

      -Benjamin Franklin

  53. Now i know what today ๐Ÿ™‚ they look so good! I just happen to have a jar of Fluff I bought on a vacation. We don’t have it here in Denmark.
    – Line

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