Mississippi Mudslide Bars

This website may contain affiliate links and advertising so that we can provide recipes to you. Read my privacy policy.

Mississippi Mudslide Bars are a chewy brownie base, topped with a fluffy marshmallow layer, and finished off with a rich and silky chocolate frosting. They are so addictive!

Brownies are a decadent dessert that everyone loves. I have tried and true brownies that come in all flavors, like Glazed Lemon Brownies, Red Velvet Brownies and Cream Cheese Brownies! YUM!

Mississippi mud slide bar on parchment paper.

Mississippi Mudslide Bars

These Mississippi Mudslide Bars are absolutely, positively addictive. These are aptly named because they mimic the famous Mississippi Pie. It was named this because it was the same color as the banks of the Mississippi River, deep chocolate brown. However it got its name, these brownies are exquisite. These are super simple and really easy to make and the whole family is going to love the chewy marshmallow top covered in a rich frosting. Mississippi Mudslide bars are perfect for picnics, parties and whenever you need a good chocolate fix.

You can serve these at room temperature but there’s something about that frosting that gets a million times better when it’s chilled. If you’re wondering what exactly these bars are, they are a chewy brownie base, topped with a fluffy marshmallow layer, and finished off with a rich and silky chocolate frosting. Like I said, ADDICTIVE!! Don’t wait another day before making these, you will LOVE them!

Ingredients For Mississippi Bars

Fudgy, gooey and oh so good, these simple ingredients are destined to make greatness.

  • Butter: Melt your butter first so it isn’t piping hot.
  • Sugar: White granulated sugar balances out the cocoa and also adds moisture.
  • Cocoa Powder: This is unsweetened cocoa, not sweetened.
  • Eggs: Get your eggs out early and allow to come to room temperature.
  • Vanilla: Vanilla helps the chocolate taste like chocolate, it’s true.
  • Salt: Needed to balance out the sweetness.
  • Flour: All purpose flour or unbleached flour.
  • Miniature Marshmallows: Make sure your marshmallows are soft and fresh, not hard.

Frosting: 

  • Chocolate Chips: Use semi sweet chocolate chips, they are the perfect flavor.
  • Heavy Whipping Cream:This creates a creamy consistency that won’t harden when refrigerated.
  • Butter: Butter should be at room temperature, not cold.
  • Vanilla: Sweet vanilla helps the chocolate taste divine.

Let’s Make Mississippi Mudslide Bars

The extra step in making your own frosting is absolutely divine, you won’t regret the extra time.

  1. Prep: Preheat oven to 350 degrees and grease a 9×13 inch baking pan.
  2. Mix: In a large bowl combine melted butter, sugar, cocoa powder, eggs and vanilla and mix until smooth.
  3. Add: Stir in flour and salt and mix until incorporated.
  4. Bake: Spread evenly in a prepared pan. Bake for 25-30 minutes until a toothpick in the center comes out clean. a few loose crumbs are okay but no wet batter.
  5. Marshmallows: Spread the marshmallows in an even layer on top of the brownie layer. Return them to the oven and bake for another 3-7 minutes until marshmallows are fluffy and beginning to lightly brown.
  6. Cool: Allow to cool while you prepare the frosting
  7. Frosting:  In a microwave-safe glass bowl combine chocolate chips and heavy cream and microwave on half power for 2 minutes at a time, stirring after each until smooth.
  8. Add: Stir in butter and vanilla and and mix till smooth.
  9. Cover: Pour mixture over the marshmallows and chill at least 2-3 hours or until completely cooled before cutting into bars and serving.

Mississippi mud slide bar with a fork full removed.

Tips and Variations Of Mississippi Mudslide Brownies

These are rich and fudgy. You will be tempted to eat them all by yourself. It is ok, I understand.

  • Eggs: Eggs beat best into recipes when they are at room temperature, so if you have time and remember remove them from the fridge about 20-30 minutes before using.
  • Flour: I like to sift my flour so that it mixes in smoothly and I do not have any lumps.
  • Cocoa Powder: There are two types of cocoa powder out there, regular and dutch cocoa. Regular cocoa has a lighter color and more intense chocolate flavor. Dutch cocoa has been treated to reduce some of the acidity, it creates a smooth more mellow flavor and darker color. Either one will work in this recipe, but regular will have more intense chocolate flavor. Use dutch if you want a lighter flavor.
  • Add: If you like a bit of a crunch, toast chopped pecans and add with the marshmallows. It is so delicious. You could use peanuts too if you wanted.
  • Double It: If you are having a party and need to feed a crowd, double the recipe and bake in a sheet pan.
  • Cutting Mudslide Bars:  For best results let the bars cool completely. Using a good serrated knife or plastic knife use a sawing motion to cut the brownies.

Storing and Keeping Mississippi Mudslide Bars

This is if you have leftovers of Mississippi Bars, you may not, and do not be surprised by that.

  • Storing: These will keep either in the fridge tightly covered for up to a week. Or you can keep them tightly covered for up to 4 days at room temperature. Either way they are delicious.
  • Freezing: You can also keep these in the freezer. Wrap tightly with plastic and then with foil. Keep for up to 3 months.

More Chocolate Desserts To LOVE

Chocolate is one of those ultimate comfort foods, that just hits the spot. I have tried to give up chocolate, but I am not a quitter. It’s just that simple. Chocolate makes people happy. They smile  and as they wrap their lips around a bit of something gooey, rich and sweet, life’s troubles melt away for a second. We are not supposed to medicate with food, we all know that. But I think an exception should be made when it comes to chocolate, it is medicine. Just in small doses. Everything in moderation. We can indulge responsibly, I think.  With that here are some tried and true recipes when life calls for a bit of chocolate.

Mississippi Mudslide Bars

0 from 0 votes
Mississippi Mudslide Bars are are a chewy brownie base, topped with a fluffy marshmallow layer, and finished off with a rich and silky chocolate frosting. They are so addictive!
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 2 hours 45 minutes
Author Tiffany
Servings: 24 Bars

Ingredients
  

Bars:

  • 1 cup butter melted
  • 2 cups sugar
  • 1/3 cup unsweetened cocoa powder
  • 3 large eggs
  • 1 teaspoon vanilla
  • 1/4 teaspoon salt
  • 2 cups flour
  • 4 cups miniature marshmallows

Frosting:

  • 2 cups semisweet chocolate chips
  • ¾ cup heavy whipping cream
  • 2 tablespoons butter
  • 1/4 teaspoon vanilla

Instructions
 

  • Preheat oven to 350 degrees and grease a 9x13 inch baking pan.
  • In a large bowl combine melted butter, sugar, cocoa powder, eggs, and vanilla and mix until smooth. Add flour and salt and mix until incorporated. Spread batter evenly in prepared pan. Bake for 25-30 minutes until an inserted toothpick in the center comes out clean (a few loose crumbs are okay but no wet batter).
  • Spread marshmallows in an even layer on top of the brownie layer. Return to oven and bake another 5-7 minutes until marshmallows are fluffy and beginning to lightly brown. Allow to cool while you prepare the frosting.
  • In a microwave-safe glass bowl combine chocolate chips and heavy cream and microwave on half power for 2 minutes at a time, stirring after each, until smooth. Stir in butter and vanilla til smooth. Pour mixture over marshmallows. Chill at least 2-3 hours or until completely cooled before cutting into bars and serving.

Nutrition

Serves: 24

Calories329kcal (16%)Carbohydrates40g (13%)Protein3g (6%)Fat18g (28%)Saturated Fat11g (55%)Cholesterol54mg (18%)Sodium120mg (5%)Potassium130mg (4%)Fiber2g (8%)Sugar27g (30%)Vitamin A412IU (8%)Vitamin C1mg (1%)Calcium23mg (2%)Iron2mg (11%)

All nutritional information is based on third party calculations and is only an estimate. Each recipe and nutritional value will vary depending on the brands you use, measuring methods and portion sizes per household.

Course Dessert, Snack
Cuisine American
Tried this recipe?Mention @alyssa_therecipecritic or tag #therecipecritic

Tiffany

Tiffany is an avid cook and photographer who enjoys eating food as much as she does preparing it. She likes to focus on quick, no-fuss meals with lots of big, bold flavors the whole family will love. Putting her own tasty spin on a classic meal or flavor combination is her passion!

Read More Posts by Tiffany

Visit Tiffany's Website

facebook twitter pinterest instagram

Categories

Comments

Leave a reply
  1. I finally made these after debating long and hard over the vague bake time. I baked them for 20 minutes. Texture was ok , but there was no chocolate flavor for the brownie layer and did not resemble a brownie, nor the picture of the brownie by the recipe. Cocoa powder measurement for a 9×13 pan of brownies is very low.

Leave a Reply

Your email address will not be published. Required fields are marked *

Recipe Rating