Brownie Mix Chocolate Fudge Bars

Highlighted under: Delightful Desserts

I love how easy it is to whip up these Brownie Mix Chocolate Fudge Bars whenever I crave something sweet. Using a premade brownie mix not only saves time but also ensures that the bars turn out rich and fudgy every single time. With just a few extra ingredients, I can customize them to my liking by adding nuts or chocolate chips. These bars are perfect for a quick dessert or a special treat to share with friends and family, and they always disappear in no time!

Vanessa Doyle

Created by

Vanessa Doyle

Last updated on 2026-02-27T17:50:16.995Z

When I first stumbled upon the idea of using a brownie mix to create fudge bars, I was intrigued. I decided to experiment and was pleasantly surprised at how well it worked! The key is to not overbake them, which gives them that signature fudgy texture that everyone loves. I also like to sprinkle some sea salt on top before baking to enhance the chocolate flavor.

As I made multiple batches, I discovered that adding a swirl of peanut butter or even caramel really amps up the taste. It’s a simple hack that makes these bars not only delicious but also unique. Now, I keep some brownie mix on hand just for these fudge bars!

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Why You'll Love These Bars

  • Rich chocolate flavor that's incredibly indulgent
  • Fudgy texture that melts in your mouth
  • Customizable with your favorite mix-ins like nuts or chips

Mastering Fudge Texture

Achieving the perfect fudgy texture in these Brownie Mix Chocolate Fudge Bars hinges on a few critical factors. One important element is ensuring not to overmix your batter after adding in the chocolate chips and nuts. Overmixing can introduce too much air and lead to a cakey texture rather than the desired dense fudge consistency. Gently fold in your mix-ins until just combined—this will help maintain that luxurious fudgy feel that melts in your mouth.

Another factor to consider is the baking time. Every oven is different, so it's essential to keep an eye on your bars as they approach the 20-minute mark. Look for edges that are slightly puffed and a center that still appears a bit moist when you insert a toothpick. The residual heat will continue to cook the bars as they cool, setting them to perfection without drying them out.

Ingredient Insights

The base of these bars is a brownie mix, which not only simplifies preparation but also provides a rich flavor profile. However, using a high-quality brownie mix can elevate the final product significantly. Brands that feature cocoa from premium sources tend to impart deeper chocolate notes, enhancing the overall richness and complexity of your bars.

Vegetable oil is another key ingredient that contributes to the bar's moistness. You can substitute it with melted butter for a slightly richer taste, though this can change the texture, making it a bit denser. For those looking to make a lighter version, applesauce can also be used in place of oil; just be aware that this may alter the final taste and moisture balance.

Storage and Serving Suggestions

Once your Brownie Mix Chocolate Fudge Bars are cooled and cut, it's essential to store them properly to maintain their fudgy texture. Keep them in an airtight container at room temperature for up to 5 days. For longer storage, wrap them tightly in plastic wrap and freeze for up to 3 months. It’s best to thaw them in the refrigerator overnight when you’re ready to enjoy them again, preserving the fudgy integrity.

These bars are incredibly versatile for serving. For a special treat, warm them in the microwave for a few seconds and serve with a scoop of vanilla ice cream on top for an indulgent dessert. Alternatively, you can dress them up with a drizzle of caramel sauce or a dusting of powdered sugar for a more elegant presentation. Experimenting with flavored chips—like peanut butter or mint—can also create delightful variations!

Ingredients

Gather these ingredients before you start:

For the Brownie Fudge Bars

  • 1 box brownie mix
  • 1/2 cup vegetable oil
  • 1/4 cup water
  • 2 large eggs
  • 1 cup chocolate chips
  • 1/4 cup chopped nuts (optional)
  • Sea salt for sprinkling

Make sure you have all your ingredients ready for an effortless baking experience.

Instructions

Follow these steps to create your delicious fudge bars:

Preheat the Oven

Preheat your oven to 350°F (175°C) and prepare a 9x13 inch baking dish by greasing it or lining it with parchment paper.

Mix the Ingredients

In a large bowl, combine the brownie mix, vegetable oil, water, and eggs. Stir until the mixture is well combined and smooth.

Add Chocolate Chips and Nuts

Fold in the chocolate chips and chopped nuts if you're using them. Make sure they are evenly distributed throughout the batter.

Bake the Bars

Pour the batter into the prepared baking dish and spread it out evenly. Sprinkle a touch of sea salt on top for added flavor. Bake in the preheated oven for 20-25 minutes, or until a toothpick inserted comes out with a few moist crumbs.

Cool and Cut

Allow the fudge bars to cool in the pan for about 10 minutes before transferring them to a wire rack to cool completely. Once cooled, cut into bars and enjoy!

Don’t forget to share your delicious fudge bars!

Pro Tips

  • For an extra layer of flavor, try adding ingredients like crushed candy canes during the holiday season or a drizzle of caramel on top before serving.

Quick Troubleshooting Tips

If your fudge bars come out too dry, it might be a result of overbaking or using a too-thin layer in your baking dish. Always ensure the batter fills the dish adequately, and use the toothpick test to check for doneness at the lower end of the baking time. If they seem dry, you can rejuvenate them slightly by drizzling a bit of warm chocolate sauce over the top before serving.

For undercooked bars, simply pop them back into the oven for an additional couple of minutes, watching closely to avoid overbaking. Remember, they’ll continue to firm up as they cool, so it's okay if the toothpick has a few moist crumbs.

Scaling the Recipe

Scaling this recipe up or down is straightforward, thanks to the simplicity of the ingredients. To double the recipe, use a larger baking dish, like a 12x18 inch pan, and increase the baking time by 5-10 minutes. Keep a close eye on the texture, as a larger batch may require a slightly longer bake to achieve that perfect fudginess.

Conversely, if you're looking to make a smaller batch, you can easily halve the ingredients and use an 8x8 inch pan. The baking time will be slightly reduced—start checking for doneness at around 15 minutes. This makes it easy to satisfy a sudden sweet tooth without the excess leftovers!

Questions About Recipes

→ Can I use a different brownie mix?

Yes, feel free to use any brand of brownie mix you prefer. Each brand may vary slightly in results.

→ How should I store the fudge bars?

Store them in an airtight container at room temperature for up to 5 days.

→ Can I freeze these bars?

Absolutely! You can freeze them for up to 3 months. Just wrap them tightly and thaw them in the fridge when you're ready to enjoy.

→ What can I add for more flavor?

You can add ingredients like nuts, marshmallows, or even swirls of peanut butter for added flavor and texture.

Brownie Mix Chocolate Fudge Bars

I love how easy it is to whip up these Brownie Mix Chocolate Fudge Bars whenever I crave something sweet. Using a premade brownie mix not only saves time but also ensures that the bars turn out rich and fudgy every single time. With just a few extra ingredients, I can customize them to my liking by adding nuts or chocolate chips. These bars are perfect for a quick dessert or a special treat to share with friends and family, and they always disappear in no time!

Prep Time15.0
Cooking Duration25.0
Overall Time40.0

Created by: Vanessa Doyle

Recipe Type: Delightful Desserts

Skill Level: Easy

Final Quantity: 12.0

What You'll Need

For the Brownie Fudge Bars

  1. 1 box brownie mix
  2. 1/2 cup vegetable oil
  3. 1/4 cup water
  4. 2 large eggs
  5. 1 cup chocolate chips
  6. 1/4 cup chopped nuts (optional)
  7. Sea salt for sprinkling

How-To Steps

Step 01

Preheat your oven to 350°F (175°C) and prepare a 9x13 inch baking dish by greasing it or lining it with parchment paper.

Step 02

In a large bowl, combine the brownie mix, vegetable oil, water, and eggs. Stir until the mixture is well combined and smooth.

Step 03

Fold in the chocolate chips and chopped nuts if you're using them. Make sure they are evenly distributed throughout the batter.

Step 04

Pour the batter into the prepared baking dish and spread it out evenly. Sprinkle a touch of sea salt on top for added flavor. Bake in the preheated oven for 20-25 minutes, or until a toothpick inserted comes out with a few moist crumbs.

Step 05

Allow the fudge bars to cool in the pan for about 10 minutes before transferring them to a wire rack to cool completely. Once cooled, cut into bars and enjoy!

Extra Tips

  1. For an extra layer of flavor, try adding ingredients like crushed candy canes during the holiday season or a drizzle of caramel on top before serving.

Nutritional Breakdown (Per Serving)

  • Calories: 380 kcal
  • Total Fat: 26g
  • Saturated Fat: 15g
  • Cholesterol: 195mg
  • Sodium: 85mg
  • Total Carbohydrates: 32g
  • Dietary Fiber: 3g
  • Sugars: 24g
  • Protein: 6g