Mom’s Famous Marshmallow Brownies

Published: May 3, 2011Updated: September 29, 2020Author: Elyse Ellis
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These Famous Marshmallow Brownies are exactly what they are described as; FAMOUS. I guarantee these brownies will be one of the best brownies you will ever taste in this world. They are so creamy, chocolatey and delicious. You will love them.
Mom’s Famous Marshmallow Brownies
Our mom is known all over town for making these amazing brownies.  They are literally my favorite brownies of all time.
The brownie base is homemade, which is delicious.
If you have never tried making homemade brownies before, you are going to be shocked at how delicious and easy it is to make.
These Marshmallow Brownies were a childhood staple.
Our mom would always make them for the neighbors or friends who had had a rough day, and we hated it when she would give them all away.
These homemade brownies are perfect for feeding a crowd, because you make them in a cookie sheet pan.
Everyone who tastes these always says, “These are the best brownies EVER.”
I’d have to say I agree. They truly are the best brownies.

Our other popular sheet pan brownies are our Texas Sheet Cake Brownies – they are incredible and so easy.

That marshmallow layer stays perfectly soft to break up the layers of chocolaty goodness. You melt them slightly and they taste like a perfectly roasted marshmallow.
 I would definitely recommend making these a few hours before serving to allow the frosting to set up completely. We don’t recommend frosting them until they are cool, just so the frosting can fully set up, and not sink or melt into the brownies.
This frosting is best served on cooled brownies (or in this case, cooled marshmallows.

could i use marshmallow cream instead?

We have only used mini marshmallows when we make this recipe. However, I am sure that marshmallow cream would work just as well, but we do recommend roasting them in the oven for a little bit, either way.

The texture of the marshmallows will be a little different, and they may not hold as well, but I am sure the flavor would still taste amazing. It may also take two cans of the marshmallow cream, to cover the brownies.

watch how to make these brownies, here:

Did you know we have a Youtube Channel? We have hundreds of simple and delicious recipes, your family is going to love. We take you through each recipe, step by step, and show you exactly how to make them.

These Chocolate Marshmallow Brownies are simple and delicious. Watch how to make them, here:

looking for more brownie recipes? here are a few of our favorite:

Chocolate Cherry Chunk Brownies
Buttermilk Brownies with Peanut Butter Frosting
Lunch Lady Brownies
Chocolate Cream Cheese Brownies
Fudgy Avocado Brownies

Serves: 28

Chocolate Frosted Marshmallow Brownies

10 minPrep Time

25 minCook Time

35 minTotal Time

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Ingredients

    Brownies:
  • 1 cup butter (softened)
  • 2 cups sugar
  • 1/3 cup cocoa powder
  • 4 eggs
  • 1 1/2 cups flour
  • 1 teaspoon salt
  • 2 teaspoons vanilla extract
  • 1 (10 ounce) package mini marshmallows
    • Frosting:
  • 1/2 cup butter (softened)
  • 2-3 Tablespoons milk
  • 1 teaspoon vanilla extract
  • 4 Tablespoons cocoa powder
  • 3 cups powdered sugar

Instructions

    For the brownies:
  1. Preheat oven to 350 degrees F.
  2. Cream together butter, sugar and cocoa.
  3. Beat in eggs, one at a time, mixing after each one.
  4. Add flour, salt and vanilla and mix until well combined.
  5. Spray a baking sheet nonstick cooking spray.
  6. Spread brownie batter in prepared pan and bake for 22-25 minutes.
  7. Remove brownies from oven and spread marshmallows in an even layer on top. Return to oven for 3 minutes, until marshmallows are soft and puffy.
  8. Let cool completely.
    9. For the frosting:
  9. Mix all ingredients with a hand mixer until smooth.
  10. Add more powdered sugar or milk until you reach desired consistency and spread on top of bars.
  11. Let frosting set up before cutting.

Nutrition

Calories

8201 cal

Fat

395 g

Carbs

1074 g

Protein

228 g
Click Here For Full Nutrition, Exchanges, and My Plate Info
7.8.1.2
2668
https://www.sixsistersstuff.com/recipe/moms-famous-marshmallow-brownies/

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  1. Camille says:
    May 3, 2011
    These are hands-down my favorite brownies of all time!!!!
    Reply
  2. Jenn says:
    June 3, 2011
    I love this type of brownie!! Yummy.
    Reply
  3. someonesgottapay says:
    June 5, 2011
    Those look delicious!

    P.S. If you're looking for more delicious chocolate, check my blog, I have a couple chocolatey giveaways going on right now!

    http://someonesgottapay.wordpress.com/category/giveaways/chocolate-giveaways/
    Reply
  4. Nur Diyanah Magness says:
    June 12, 2011
    wow so simple yet looks so goood! I am going to make it a point to try this soon.
    Reply
  5. Belinda Madsen says:
    November 4, 2011
    My brownies are similar but with a LOT more butter and instead of frosting over the marshmallows, FUDGE. Actually, I'm eating one now...
    Reply
    • mindy says:
      May 2, 2012
      Would you share this recipe?
      Reply
  6. Cami says:
    November 4, 2011
    What chocolate frosting do you use? I have one, but don't love it.
    Reply
  7. Michael Ann says:
    November 4, 2011
    I've had these before! They were so good, and I don't have the recipe so thank you!!!
    Reply
  8. The Ellis' says:
    November 4, 2011
    Hey Cami!

    I added the recipe my mom always uses for her chocolate frosting to the bottom of the post. She has never written down the recipe so after a little trial and error, we came up with that! I hope it works!
    Reply
  9. amy says:
    November 9, 2011
    What does "1 cube margarine" mean for the frosting? 1 stick? 1 tablespoon?
    Reply
  10. The Ellis' says:
    November 9, 2011
    Hey Amy!

    It means one stick or a 1/2 c. Sorry about that! Thanks
    Reply
  11. Anonymous says:
    November 13, 2011
    Your recipes just look awesome. I'm overwhelmed with so many choices but I gotta start somewhere! Thanks for sharing all your great ideas!
    Reply
  12. Anonymous says:
    November 17, 2011
    My mom also made these while I was growing up. One of my fav recipes! This is also a fav for potlucks...as you said, it makes a ton and they're always a hit!
    Reply
  13. Jill says:
    January 18, 2012
    Have you ever used butter instead of margarine?
    Reply
    • Six Sisters says:
      March 29, 2012
      Yes, works great!! :)
      Reply
  14. Amanda B. says:
    January 29, 2012
    Made them and loved them! Thanks!
    Reply
  15. Mary says:
    March 22, 2012
    How much is a cereal spoonful. A teaspoon? A tablespoon?
    Reply
    • Six Sisters says:
      March 29, 2012
      Sorry! A tablespoon would be best!
      Reply
  16. Laura Couto says:
    March 27, 2012
    How much would a cereal spoonful be?
    Reply
    • Six Sisters says:
      March 29, 2012
      Sorry about that. I would go with a tablespoon!
      Reply
      • Mary says:
        August 3, 2020
        What size sheet pan do you use? These look delicious !
        Reply
        • Cyd says:
          August 4, 2020
          It's a half sheet baking pan. They are about 13 x 18 inches. We love this pan - https://amzn.to/2C2jQI4
          Reply
    • Terrie says:
      June 8, 2020
      These are amazing and so simple to make, you must try
      Reply
  17. Amy says:
    April 4, 2012
    Has anyone used marshmallow creme instead of mini marshmallows? How did that work out?
    Reply
  18. Grandma Watson says:
    April 28, 2012
    these are just like I make only with my family they have to have chopped pecans in them, and lots of them. This is one of the best Blogs I have visited, so much great information.
    Reply
  19. Haley says:
    May 15, 2012
    ok, I just made these and they over flowed all over the bottom of my oven and that part burned and caused a huge mess - did this happen to anyone else??? The whole house was filled with smoke!
    Reply
    • Cali says:
      June 11, 2012
      Sounds like your pan was too small. Did you use a cookie sheet?
      Reply
  20. dan and audrey says:
    September 2, 2012
    I am not a baker.... Made these and they were devoured!!! Although they did not look as pretty as yours, the taste is what counts right?!
    Reply
  21. Moe says:
    September 8, 2012
    Do you need to refrigerate leftovers because of the milk in the frosting?
    Reply
    • Six Sisters says:
      September 9, 2012
      We usually just stick Saran wrap on them and stick them on the counter. I have never refrigerated them after I've made them :) thanks for your question!
      Reply
  22. Kelley Beam says:
    November 6, 2012
    Ummm...what kind of flour? SF or AP?
    Reply
  23. Melanie Hanni says:
    July 28, 2013
    If your going to make brownies use real butter not margarine, tastes so much better.
    Reply
  24. Renae says:
    September 27, 2013
    I'm having a hard time cutting them because the marshmallow layer is sticking to the knife. Any tips?
    Reply
    • Cyd says:
      September 27, 2013
      Run your knife through hot water before slicing and that should help you get through the yummy marshmallow layer for a cleaner cut.
      Reply
  25. Annette says:
    April 28, 2018
    This is a marvelous recipe. They turned out perfect! Thanks for sharing your recipe Six Sisters’ Stuff!
    Reply
  26. Stephanie says:
    May 2, 2018
    Yum! What size baking sheet do you recommend?
    Reply
    • Cyd says:
      May 3, 2018
      We use a cookie sheet measuring 10 x 15 x 1 inch.
      Reply
  27. Samantha Hoppie says:
    July 17, 2019
    Salted or unsalted butter?
    Reply
    • Cyd says:
      August 12, 2019
      Either works great. We used salted.
      Reply
  28. Kelly Wolfe says:
    March 11, 2020
    Can you use any kind of butter like blue bonnet or country crock or does it have to be real butter .... For the frosting or brownies
    Reply
    • Cyd says:
      March 11, 2020
      You could use blue bonnet or country crock. Just remember if the frosting is not thick enough, just add a little more powdered sugar to get the right consistency.
      Reply
  29. Tammy Gould says:
    March 31, 2020
    I was wondering do you use buttermilk or whole milk for frosting?
    Reply
    • Cyd says:
      April 2, 2020
      We use whatever milk we have in our fridge. It's usually 1%.
      Reply
  30. Kay says:
    October 27, 2020
    My mother had a similar recipe. We now refer to it as Exlax Brownies. When my brother (there are also 4 sisters) was in college, I made him a batch of these (his favorite)...and I put Exlax in the frosting. He was such a brankster...so he truly deserved this! Unfortunately (for him!) he only shared with 2 other buddies. Next time he came home, he came up to me with what was left (all of TWO brownies) and tried to make me eat it. It's been a family joke ever since. I was very proud to actually pull over a good prank on my brother!
    Reply
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