These Mississippi Mud Cookies are rich, gooey chocolate pecan cookies with an insanely delicious twist to the classic pie.
I love these cookies, and you know what? The best part about these Mississippi Mud Cookiesย is that they are so easy to make AND make much less of a mess than pie.

So, I owe this recipe for Mississippi Mud Cookiesย to my friend, Diana. She recently texted me and asked if I had a Mississippi Mud Pie Brownie recipe after she saw that I have a Mississippi Mud Pie No-Bake Cheesecake on my blog. Although I have a killer recipe, I have yet to post it.
Chocolate Marshmallow Cookies
I knew this cookie’s base had to be unique, rich, and chewy. Therefore I decided to use my chocolate cookie recipe from myย German Chocolate Cake Cookiesย as it is the best cookie.
I contemplated for a while whether to use marshmallow creme or tiny marshmallows, and I went with the one that was less messy to put on the cookie.

Reader’s Review
Made these for a dinner party, and they would divine! Added just a sprinkle of course salt on top to compliment the sweet richness. – Juli
Where does the Mississippi Mud Pie originate?
The name originates from Mississippi. The dessert resembles the banks of the Mississippi River with the combination of chocolate crust and pudding in the original pie recipe.
This incredibly delicious dessert is traditionally decadent, so while these cookies may not be as rich as the original, they will make your heart swoon.

Mississippi Mud Cookie Ingredients

How to make Mississippi mud cookies
Preheat the oven to 375ยฐ F and line baking sheets with parchment paper.
Blend the butter, brown sugar, granulated sugar, vanilla, and eggs in a stand mixer or large bowl using a hand mixer.
In a medium bowl, stir together the flour, cocoa, baking soda, and salt. Gradually add the flour mixture to the butter mixture and blend until combined.

Drop the dough by tablespoonful onto the prepared baking sheets, 12 cookies per sheet, and bake 8-9 minutes.
Once you have baked it for about 7-8 minutes, add 6-8 miniature marshmallows on top of each cookie. You can gently press in if they fall out, but you shouldnโt need to do that much. The cookies are so hot the marshmallows stick right to them. Then stick it back in the oven for 1 more minute.

Remove the cookies from the oven and immediately sprinkle 1 tablespoon or more (depending on your taste) of pecans onto the marshmallows; you will need to press these in gently! Then, set aside and allow it to cool on a baking rack.
Make the frosting while the cookies cool.
Add powdered sugar and vanilla in a medium mixing bowl and set aside.
Then, combine the first three ingredients in a small saucepan and heat over medium. Stir constantly, about 3-4 minutes, or until butter melts. Remove from heat, and pour into powdered sugar and vanilla; stir (using a whisk is best) until smooth.
Drizzle large amounts of frosting on each cookie using a spoon, about 1- 1 1/2 tablespoons. Dress all the cookies and add more if there is extra frosting.

Let the frosting cool and harden before serving. Unless you need to sample one, dig in just be sure not to burn the roof of your mouth.

I love recipes that are delicious, easy, and aย real crowd-pleaser. I love these cookies even more than the brownie version, which is a lot for me to say because brownies are my favorite dessert.
Over the holiday, people ooh and aah over these cookies. It’s not your traditional Christmas classic cookie. Still, it’s always a favorite, and since everyone has already been inundated with sugar cookies, well, you can bet they will be an instant hit.
Enjoy this recipe, friends, inspired by one of my friends. It is so delicious you will like this more than a brownie.XOXO San

More Chocolate Cookies
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My Favorite Kitchen Tools To Make This Recipe
From trusty pots and pans to handy gadgets, Iโve curated a list of products I use and love.
Mississippi Mud Cookies

Ingredients
Chocolate Cookie
- 1 cup butter softened
- 1 cup light brown sugar
- 1 cup granulated sugar
- 2 teaspoons vanilla extract
- 2 large eggs beaten
- 2 1/4 cups all-purpose flour
- 1/2 cup unsweetened cocoa powder
- 1 teaspoon baking soda
- pinch salt
- 3 cups miniature marshmallows
- 3 cups pecans coarsely chopped
Chocolate Frosting
- 1/2 cup butter
- 1/3 cup milk
- 6 tablespoons unsweetened cocoa
- 3 1/2 cups powdered sugar
- 1 teaspoon vanilla extract
Instructions
Chocolate Cookie
- Preheat the oven to 375ยฐ F. Line baking sheets with parchment paper.
- In a stand mixer or large bowl using a hand mixer, blend the butter, brown sugar, granulated sugar, vanilla, and eggs. In a medium bowl, stir together the flour, cocoa, baking soda, and salt. Gradually add the flour mixture into the butter mixture and blend until combined.
- Drop the dough by tablespoonful onto the prepared baking sheets, 12 cookies per sheet, and bake 8-9 minutes. Once you have baked it about 7-8 minutes, add 6-8 miniature marshmallows on top of each cookie, you can gently press in if they fall out, but really you shouldnโt need to do that much. The cookies are so hot the marshmallows stick right to them. Then stick back in the oven for 1 more minute. Remove and immediately sprinkle 1 tablespoon or more (depends on your taste) of pecans onto the marshmallows, you will need to gently press these in, gently! Then set aside and allow to cool on a baking rack.
- Once cool remove and make frosting.
Chocolate Frosting
- In a medium mixing bowl, add powdered sugar and vanilla, set aside. Then in a small saucepan combine first 3 ingredients and heat over medium. Stir constantly, about 3-4 minutes or until butter melts. Remove from heat, and pour into powdered sugar and vanilla, stir (using a whisk is best) until smooth.
- Using a spoon, drizzle large amounts of frosting on each cookie, about 1- 1 1/2 tablespoons. Dress all the cookies and if there is extra frosting, add more too each one. Let frosting cool and harden before serving. Unless you need to sample one, then dig in just be sure not to burn the roof of your mouth.

My Favorite Kitchen Tools To Make This Recipe
From trusty pots and pans to handy gadgets, Iโve curated a list of products I use and love.
Oh my, those look amazing. I have never had cookies like that before, but I would love to devour an entire batch!
WHOA! These cookies look absolutely amazing! I am going to have to try your recipe the next time I want cookies, they look pretty easy to make too!
I’d never have thought to make these into cookies – what a genius and delicious idea!
OMG those look so yummy!
oh my goodness you are making me want to stay from my diet! yummy!
These look like a gourmet bakery dessert! Holy moly – delish!
This looks amazing! I am a huge chocolate lover, and these look like the cookies for me.
These make me drool! Seriously deliciousness that I can’t wait to try the recipe for. I bet your family just melted ๐
ohh those look so yummy!!!!
I imagine your friend was quite thrilled with this recipe. Those cookies look divine!
How amazing!!!! I’ve learned that the sillier the name (ie Mud) the better the treat! I will have to make these for my anniversary- my hubby will freak!
This recipe looks fantastic. I need to add this to my must make list asap.
These look absolutely amazing! I saw them on Pinterest this morning and knew I had to make them!
These look like chocolately heaven, yum yum!!!
I love Mississippi Mud Cake and this looks even better! Definitely keeping this recipe for our next family get together.
Those look amazing!! I had never heard of these before and I bet they would cure a sweet tooth!!
These cookies look so amazing! I want to reach into my screen and take them.
There you go again, coming up with another amazing treat! I totally pinned them!
DH is a cookie monster. I will have to share this recipe with him. It’s nice to meet you on WW! Now following! ๐
Oh wow….these look wonderful…they have all the classic components of a Mississippi Mud Cake…but in cookie form! Love these….Pinning now!
Drooling over these cookies! They look amazing and would cure my chocolate craving after I had eaten two of them…or three. Perhaps I should hide a whole dozen of them from the kids.
Oh yes. Those look like pieces of heaven. Wow!!!
Thanks Jen. xo San
These look amazing! My kids would love the marshmallows on them!
Those and the frosting was their favorite. xo San
Those look so good! I imagine your little mashup recipe they will be a definite favorite for quite a while now.
Is there anything else to say besides yum. Oh wait, Can I have one please?
I wish you lived near by I would bring you a dozen. xo San
These look amazing!! The cookies look so fudgy… and the toppings!! Yum!!
I ate a cheesecake last night that looked a lot like the cookies. I love the flavor combination! They look awesome.
These look delicious! So creative!
Oh my goodness! These look amazing! I need to try this! Pinning!
Thanks I hope you like them!
These sound amazing, Sandra!!
Thanks girl!
Ok, this is a must make – like today! Thanks for sharing at Wonderful Wed Blog Hop. Carrie, A Mother’s Shadow
These sound so good!!!! =)
Stopping by from “Party on the Porch”!
I never thought of using these ingredients in a cookie, but they look delicious! Can’t wait to try them! Thank you so much for linking up at Tasty Tuesday! Your recipe has been pinned to the Tasty Tuesday Pinterest board! Please join us again this week!
I’m gaining weight just looking at all the incredible edibles you have. Thanks again for sharing. See you next #theWeekendsocial? ๐ Off to pin. @theKitchenChopper
Now this is a COOKIE!! Pinned and sharing on Facebook!!
Hugs from Freedom Fridays!!
These look incredible! So decadent!
Is there really coconut in these? I don’t see it in the ingredient list, but it’s mentioned in the directions.
They sound delish either way!
These look FABULOUS! #pinning from the Wake Up Wednesday “Linky.” Thank you for linkup in and partying with us. Check back next week to see if you’re featured.
Thanks Christie I will be by. xo San
In the ingredient list you do not have coconut listed, but in the instructions it says to add coconut. How much?
No coconut in it sorry about that, the recipe has been revised. xo San
I went ahead and made these without the coconut,chips or nuts in the cookie. WOW! delicious. Thanks for the wonderful recipe.
You’re welcome! xo San
Wow these look awesome. Thanks for sharing. Hello from Craft Frenzy Friday!
Happy you came by, thanks! Hope you can try them soon! xo San
I was looking for a recipe to make for my son’s bake sale. I think I found it!! However, I am going to add Reeses Pieces to them instead of pecans!!! I will have to keep a couple home for myself!!
Made these for a dinner party and they would divine! Added just a sprinkle of course salt on top to compliment the sweet richness.
And I saved time by using Ghirardelli dark melting wafers instead of frosting. Just heat and pour and it turns out wonderfully!
Are the these cookies crunchy or soft? (Mississippi Mud)…. Thank you
Can these cookies be frozen for a week?
Oh my goodness! Don’t these look divine!!?!
Oh my goodness, these are amazing! I can’t wait to try these!!
This looks and sounds so good! Would love to give this a try!
Oooh, these look positively addicting!
I need these cookies in my life! They look so good!
The cookies were great but mine deflated when they came out of the oven. What did I do wrong?
I’m glad you enjoyed them! They should be flat but chewy cookies, so they may deflate a little as they cool.
Thanks For Sharing this Amazing Recipe. My Family Loved It. I will be sharing this Recipe with my Friends. Hope They will like it.
So glad to hear that you enjoyed it!
This is by far one of my favorite cookie recipes. I just made these last week, and I’m already gearing up to make more!
Now THAT is a good looking cookie! The marshmallows, pecans, and frosting are PERFECT!
How irresistible are these cookies! My family will go crazy over them!
WOW! These cookies are incredible!! My kids would love these!
These would not last long at our house! They are incredibly delicious!
Seriously love the topping. So sweet and delish!
My new favorite cookie. The frosting is SO good it just melts in your mouth.
These Mississippi Mud Cookies are mouth watering!
Looks impossible to resist! I’m excited to make this!
WOW! These cookies are absolutely amazing! I can’t wait to make a batch!
My kids would love, LOVE these! They are the perfect sweet treat!
These cookies have all the ingredients that I like! Can’t resist them!