If you have never tried our Mom’s Famous Marshmallow Brownies Recipe, you are going to love them. There is a reason they are famous!
They are perfectly chocolatey, with just the right amount of marshmallows and chocolate frosting.
However, we do think these brownies should come with a warning. If you make them for friends or family, they are going to continue to ask you to make them, and soon enough, you too, will be famous for these yummy brownies.
Our other popular sheet pan brownies are our Texas Sheet Cake Brownies – they are incredible and so easy.
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. The best part about these brownies, is that they make a lot! They are perfect for serving a crowd! You will love them!
“I have so much time!” -No mom ever
Let us give you your time back. With the Six Sisters’ Meal Plans, we do the dinner planning, grocery ordering, and then all you have to do is decide whether to pick them up or have them delivered.
Could I use marshmallow cream instead, in Mom’s Marshmallow Brownies:
We have only used mini marshmallows when we make our Mom’s Marshmallow Brownies 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 our Mom’s Famous Marshmallow 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
- Chocolate Turtle Brownies
- Sheet Pan Fudgy Brownies
Mom’s Famous Marshmallow Brownies Recipe
Ingredients
- 1 cup butter, softened to room temperature
- 2 cups sugar
- 1/3 cup cocoa powder
- 4 eggs
- 1 1/2 cups flour
- 1 teaspoon salt
- 2 teaspoon vanilla
- 10 ounces miniature marshmallows
Frosting
- 1/2 cup butter, softened
- 2 Tablespoons milk
- 1 teaspoon vanilla
- 4 Tablespoons cocoa powder
- 3 cups powdered sugar
Instructions
- Soften margarine and blend in sugar and cocoa. We like to mix the brownie batter by hand for best results.
- Beat together and add 4 eggs, one at a time, mixing after each one.
- Add flour, salt and vanilla and mix well.
- Spread on large half sheet baking pan that has been lightly greased. They are about 18 x 13 x 1 inch.
- Bake 22-25 minutes at 350.
- Remove from oven and cover entire top with 1 package of miniature marshmallows.
- Return to oven for 3 minutes, until marshmallows are soft and puffy.
- Cool and frost with chocolate frosting.
Frosting
- Mix all ingredients with a hand mixer until smooth.
- Add more powdered sugar or milk until you reach desired consistency and spread on top of bars.
Notes
- We store these brownies on the counter covered or in an airtight container.
Nutrition
Video
Did You Make This Recipe?We’d love to hear your thoughts! Leave a review or a question in the comment section below the post.
These are hands-down my favorite brownies of all time!!!!
I love this type of brownie!! Yummy.
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/
wow so simple yet looks so goood! I am going to make it a point to try this soon.
My brownies are similar but with a LOT more butter and instead of frosting over the marshmallows, FUDGE. Actually, I’m eating one now…
What chocolate frosting do you use? I have one, but don’t love it.
I’ve had these before! They were so good, and I don’t have the recipe so thank you!!!
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!
What does “1 cube margarine” mean for the frosting? 1 stick? 1 tablespoon?
Hey Amy!
It means one stick or a 1/2 c. Sorry about that! Thanks
Your recipes just look awesome. I’m overwhelmed with so many choices but I gotta start somewhere! Thanks for sharing all your great ideas!
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!
Have you ever used butter instead of margarine?
Made them and loved them! Thanks!
How much is a cereal spoonful. A teaspoon? A tablespoon?
How much would a cereal spoonful be?
Sorry about that. I would go with a tablespoon!
Sorry! A tablespoon would be best!
Yes, works great!! 🙂
Has anyone used marshmallow creme instead of mini marshmallows? How did that work out?
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.
Would you share this recipe?
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!
Sounds like your pan was too small. Did you use a cookie sheet?
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?!
Do you need to refrigerate leftovers because of the milk in the frosting?
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!
Ummm…what kind of flour? SF or AP?
If your going to make brownies use real butter not margarine, tastes so much better.
I’m having a hard time cutting them because the marshmallow layer is sticking to the knife. Any tips?
Run your knife through hot water before slicing and that should help you get through the yummy marshmallow layer for a cleaner cut.
This is a marvelous recipe. They turned out perfect! Thanks for sharing your recipe Six Sisters’ Stuff!
Yum! What size baking sheet do you recommend?
We use a cookie sheet measuring 10 x 15 x 1 inch.
Salted or unsalted butter?
Either works great. We used salted.
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
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.
I was wondering do you use buttermilk or whole milk for frosting?
We use whatever milk we have in our fridge. It’s usually 1%.
These are amazing and so simple to make, you must try
What size sheet pan do you use? These look delicious !
It’s a half sheet baking pan. They are about 13 x 18 inches. We love this pan – https://amzn.to/2C2jQI4
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!
This i my favorite brownie recipe!!
Thanks Gaylene. So glad you like them!!
I want to try these but I don’t have a half sheet pan. Is there anything else I can use that’s similar in size?
Just a regular size cookie sheet is perfect for these brownies.
This is one of my favorites from Six Sisters! I lent my cookbook of yours out and needed to make this recipe so I checked here on your website. I noticed this recipes uses a 18×13 size pan. I would be afraid of having thin brownies that were overcooked. Your recipe book calls for a 10×15″ pan. I’ve always used this size and the brownies are plenty thin in this size baking sheet. Just FYI.
We just use a cookie sheet that we have on hand, they can vary slightly.
I have been trying to recreate the yummy marshmallow brownies my great Aunt Eithel brought to every family picnic and reunion when I was growing up. This is it!!! Thank you thank you for posting this, they are as delicious as I remembered them and brought back wonderful memories of family that have long since passed on.
wondered if these could be frozen?
Yes, you can easily freeze them in an airtight freezer container.
I read you can do this for a 9×13 pan but do not see the measurements. Where could I get that?
Thanks
When I want to make brownies in a 9 x 13 inch pan, we ususally opt for our Fudgy Brownie recipe. Then we still follow the steps with the marshmallows. After the brownies are done cooking, cover the top with mini marshmallows and stick back in the oven for about 3 more minutes. Let cool and frost. They are amazing and super fudgy and a little thicker. https://www.sixsistersstuff.com/2012/11/fudgy-brownies-recipe.html