Mississippi mud pie bars

In Style by Carrie Beth & Jen1 Comment

Looking for a dessert that will feed a crowd and really impress them, too? Look no further than this Mississippi mud pie bar recipe! While sometimes it is great to make things from scratch, other times you just need to save a little time… especially now that we have the holidays behind us. These Mississippi Mud Pie Bars use boxed brownie mix as the base, adding in a few extra ingredients that will help you create that yummy homemade feeling in fraction of the time.

Easy Mississippi Mud Pie Bars

Mississippi mud pie bars

Servings: 15 bars
Prep time: 10 minutes
Cook time: 45-55 minutes, depending on the boxed brownie mixed used


  • 2 boxes of your favorite brownie mix
  • 1 cup chopped pecans
  • 2 cups mini-marshmallows

Easy Mississippi Mud Pie Bars


1. Prepare brownie mixes, together in one bowl, according to directions on the box.
2. Mix in 1 cup of chopped pecans.
3. Bake according to directions on box. Note that since you doubled the recipe, you’ll need to add extra cooking time.
4. While brownies are baking, prepare chocolate frosting (see below).
5. When brownies are cooked to your liking, remove from oven and top with mini-marshmallows.
6. Return to oven and bake an additional 5-minutes to melt marshmallows. make sure they don’t burn!
7. Remove from oven and drizzle with frosting immediately.
8. Cool completely before cutting into squares.

Frosting ingredients

  • 1 package (16 oz.) powdered sugar
  • 1/2 cup milk
  • 1/4 cup butter, softened
  • 1/3 cup unsweetened cocoa

The Best and Easiest Chocolate Frosting

Frosting directions 

1. Beat all ingredients at medium speed with electric mixer until smooth.
2. Microwave for 30 seconds and stir.
3. Drizzle chocolate frosting over warm brownies and mini-marshmallows.
4. Cool completely before cutting into squares.


Warm them up for extra yumminess

These Mississippi Mud Pie Bars are delicious to eat as-is, but they also taste great warmed up. In our opinion, there is nothing better than a warm dessert on a chilly night! Heat a piece in the microwave for 10-15 seconds for a sizzling sweet treat. Dare we say you could even add a scoop of vanilla ice cream, if you’re feeling wild?

Oh So Gooey Mississippi Mud Pie Bars

Mississippi Mud Pie Bars

What is one of your favorite dessert shortcuts?

Meet the Author | Carrie Beth & Jen

Carrie Beth and Jen are both 30-something mothers and wives, who happen to be best friends. They both love all things preppy, southern, and just plain pretty. Between the two of them, they have 5 precious little ones and constantly have a text conversation going on about the day-to-day of their lives and the crazy adventure that is motherhood. Whether it's trying to keep up with current fashion trends, finally getting around to that DIY project, or just dealing with everyday life with kids, it always keeps them laughing and it's always real life. They share their ideas and stories on their blog, The Magnolia Mamas.

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