These Mississippi Mud Brownies are decadent and delicious! A moist brownie layered with chocolate chips, topped with melted crunchy peanut butter, marshmallows, sprinkled with toasted pecans and lacquered with a thin layer of frosting.
I am totally smitten with these Mississippi Mud Brownies.
A fudge brownie layered with chocolate chips, melty peanut butter, marshmallow and a decadent chocolate pecan frosting.What’s not to love?
To Make These Mississippi Mud Brownies You Will Need:
for the brownies:
- unbleached all-purpose flour
- unsweetened cocoa powder
- unsalted butter (room temperature)
- granulated sugar
- pure vanilla extract
- semi-sweet chocolate chips
- crunchy peanut butter
- canola oil
- mini marshmallows
- chopped toasted pecans
for the frosting:
- powdered sugar
- kosher salt
- unsalted butter
- unsweetened cocoa powder
- pure vanilla extract
These brownies require a few basic pantry ingredients, and they take less than 30 minutes to prepare! I chopped the toasted pecans ahead of time to quicken the process a bit.
Make The Brownies:
Start off by measuring 3/4 cups unbleached all-purpose flour, 2 tablespoons unsweetened cocoa powder and 1/2 teaspoon kosher salt. Add them into a small bowl.
Stir to combine and set aside.
Cream 1 stick of butter along with 1 cup of sugar until light and fluffy.
Next add in 3/4 teaspoons vanilla extract.
Add 2 large eggs, one at a time and blend well after each addition until both are incorporated.
Next, add the dry ingredients in with the sugar/butter mixture and stir to combine.
Spread the brownie mixture into the bottom of a lined 8×8 square pan.
Sprinkle with 3/4 cups chocolate chips and pop into a 350ºF oven for about 20-22 minutes.
Once the brownies have baked, here comes the really fun part.
Start by mixing 1 and 1/2 teaspoons flavorless oil in with 1/2 cup warmed crunchy peanut butter.
Then evenly pour the peanut butter all over the warm brownies.
Sprinkle 2 cups of marshmallows over the peanut butter. Bake in the oven for 3 minutes, just to puff up the marshmallows.
Top with 1/2 cup chopped toasted pecans and set aside and let cool. Now it’s time to make the frosting!
Prepare the Frosting:
In a small pan, melt 4 tablespoons of unsalted butter. Next add in 2 tablespoons cocoa. Stir and gradually pour in 1/4 cup milk. Heat the chocolate mixture until just about boiling, remove from the heat and add ¼ teaspoons vanilla extract. You could also add the vanilla to the frosting once it’s been mixed.
In a mixing bowl that contains 2 cups powdered sugar and 1/8 teaspoon salt, pour in the warm chocolate mixture while the mixer is on low speed.
Scraping down the sides as you go, mix until the powdered sugar is absorbed into the chocolate. If the frosting looks too thick, add 1 to 2 tablespoons of milk to thin it out.
Pour over the pecans and marshmallows.
After I poured the icing over top, I realized my frosting must have cooled down too much because the icing didn’t melt into the crevices of the pecans and marshmallow. So I just spread the frosting out evenly. Once cooled enough, I placed the pan into the fridge for an hour or two.
It wasn’t until I removed the Mississippi Mud Brownies and pulled back the parchment paper did I realize what I was in for. These bars contain everything that I love in life. And it was almost too pretty to eat.
This is exactly what one needs to get over the cold weather and post holiday blues. Just be sure to pour yourself a giant glass of milk, because these brownies are rich and will definitely make you thirsty.
These Mississippi Mud Brownies were so much fun to make and definitely the most decadent brownie I have ever had the pleasure to taste!
Mississippi Mud Brownies
FOR THE BROWNIES:
- 3/4 cups unbleached all-purpose flour
- 2 tablespoons unsweetened cocoa powder
- 1/2 teaspoons kosher salt
- 1/2 cup unsalted butter, at room temperature
- 1 cup granulated sugar
- 2 large eggs
- 3/4 cup semi-sweet chocolate chips
- 1/2 cup crunchy peanut butter
FOR THE FROSTING
- 1½ teaspoons grapeseed oil, or canola
- 2 cups mini marshmallows
- 1/2 cup pecans, chopped and toasted
- 2 cups powdered sugar
- 1/8 teaspoons kosher salt
- 4 tablespoons unsalted butter
- 2 tablespoons unsweetened cocoa powder
- 6 tablespoons milk
- 1/4 teaspoons pure vanilla extract
TO MAKE THE BROWNIES:
- Preheat oven to 350°.
- Line an 8×8″ square baking pan with parchment paper or foil. If using foil, spray it with cooking spray.
- In medium bowl, combine flour, cocoa powder, and salt. Set aside.
- In large mixing bowl, beat together butter, sugar, and until creamy. Add the eggs one at a time.
- Stir dry ingredients into batter.
- Pour batter into prepared pan and spread evenly. Sprinkle with chocolate chips. Bake in preheated oven for 22-25 minutes.
- When brownie layer is done baking, combine peanut butter and oil in a microwave safe bowl or measuring cup and microwave on high for 20 seconds to soften.
- Pour this warm mixture over hot brownie and spread. Sprinkle the peanut butter covered brownies with marshmallows. Return to oven to bake for 3 more minutes, or until the marshmallows puff.
- Remove from oven and sprinkle puffed marshmallows with toasted pecans.
TO MAKE THE FROSTING:
- Combine confectioners sugar and salt.
- In small saucepan, melt butter over medium heat. When butter is melted, add the cocoa powder and milk and heat until the mixture begins to boil.
- Pour this mixture into confectioners sugar/salt mixture and beat on high speed with an electric mixer until smooth and glossy. If frosting is not pourable at this point, add remaining milk.
- Lastly, beat in vanilla, then pour evenly over puffed marshmallows and pecans.
- Let cool completely in refrigerator for 1-2 hours. Cut into squares and enjoy!
Recipe adapted from Greens and Chocolate.
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THANK YOU in advance for your support!
I found you months ago via tasty kitchen. you are by far my favorite food blog (and blogger). I've tried at least a dozen of your recipes from desserts to main dishes, and each has been fantastic. you are my go-to site for new recipes. keep the yumminess coming! thanks for sharing your creativity and simplicity (as to the ingredients) in the kitchen!
Wow Danielle! Thank you so much, that really means a lot to me! You better believe that I'll keep the yumminess coming ;)!
Thanks again for your awesome comment, you just made my day!:)
I knew I liked you! 😉
I have never seen a more enticing brownie!
AMAZING…off to check the recipe.
I'm at a loss for words at how amazing these look!
I've been on a brownie kick lately too! (in fact, just posted about them myself – double orange dark chocolate ones!)
These sound great – I love the addition of marshmallows… very s'more like, and nice to add a softer texture to the mix!
I just died.
Need to walk around and burn those calories of eating brownies.
These really look delicious. My family would devour them and they'd be gone before the day was out. I hope you have a great day. Blessings…Mary
Drooling. I am a sucker for brownies. These look amazing.
Those look amazing! On my way to check out the recipe now…
These look over the top amazing!
Oooooooh yes. I need to make these TONIGHT.
Ouch. Just ouch. But, I would love to get these brownies stuck in my teeth.
My sweet tooth is tingling – always a good sign right 😀
Look absolutely delicious!
Glad to have found your blog 🙂
Pretty sure I just gained 5 lbs just from looking at that side shot of the brownie layers. I'm sure I'd probably gain 10 lbs more if I actually made these, but it would be totally worth it. 🙂
I always thought Mississippi Mud treats had coffee in them. Regardless, these brownies look fantastic. I wish I had one right now!
I've always wanted to try a mississippi mud brownie, because I've tried the pie version and loved it. Your brownies look absolutely incredible… I must have stared at that picture of the peanut butter being poured on them for a whole 2 minutes straight.
These look SO good, but I missed the amount of ingredients for the actual brownies. Help?!
Anonymous~ at the bottom of the post is a link to the recipe at Tasty Kitchen 🙂
I made a gluten free version of these for my mom (she has an allergy) and they were amazing! SOMEHOW I didn't have chocolate chips, so I used peanut butter chips and we were practically licking the pan afterward. 😀
Oh wow, this looks incredible! Soooo tempting! I don't think I'd include the marshmallows, just for personal taste, but other than that? Oooh, do I want one!
OMG! What layers of sheer yumminess! Love it!
A jar of peanut butter is the only thing that is keeping me away from making these treats. I think I need to make a trip to the grocery store for that peanut butter. These look delish!
I just died and went to happy piggy heaven. MY GOSH. These are perfect!!
I just made these Mississippi Mud brownies for a friend's southern baby shower (who's from Mississippi). They were such a hit!! VERY rich and sweet, but perfect for a special occasion. Everyone asked for the recipe, and I passed along the link to your blog.
Damn if these don't look addictive!
It looks gorgeous! And very rich in taste.
I just made these for the second time. The first time my frosting was waaaay too runny because I ran out of powdered sugar…….. and substituted regular sugar for the remainder. I also don’t own an 8×8 square baking pan. SO, this time, I doubled the recipe and used a larger pan. But my frosting was still not anywhere near looking like yours…. Lol. However, it was thicker than the first time, so I guess that’s a win? They are cooling in the fridge now. Yum Yum Yum!
where are the recipe measurements?