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Hot Fudge Brownie

5 from 8 votes

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If you’re looking for ridiculously decadent brownies, you’ve come to the right place. This Hot Fudge Brownie recipe is SO good, especially with vanilla ice cream!

hot fudge brownie sundae on a white plate

Hot Fudge Brownie | Brownie Sundae!

What could be better than a Hot Fudge Brownie Sundae during the hot summer days? Nothing. This dessert is a monster. So rich, decadent, fudgy, and sweet. Straight up ridiculous, but mama mia, that warm chocolatey brownie with the cold ice cream gets me every.single.time.

Main Ingredients Needed

  • Brownies – this can be a store-bought brownie mix made with eggs, oil, and water or make homemade brownies!


  • Ice Cream – once again, use the store-bought stuff or if you have the time, make some homemade ice cream.
  • Maraschino Cherries – and to top your sundae off, you’re going to need some bright red cherries!
  • More Toppings – and to top it all off consider these other toppings! Nuts, sprinkles, chocolate syrup, caramel syrup, marshmallows, or fruit!

For the Hot Fudge

  • Heavy Cream – this adds creaminess and some essential fat.
  • Light Corn Syrup + Brown Sugar – both are used for thickening and sweetening.
  • Cocoa Powder + Chocolate Chips – for all of the chocolatey flavor!
  • Salt – to balance the sweet.
  • Unsalted Butter – if all you have is salted butter, omit the salt.
  • Vanilla – for a subtle flavor.

Looking for other chocolate sauces to use on this recipe? I’ve got you covered: Nutella Hot Fudge Sauce, Peppermint Chocolate Sauce, and Chocolate Ganache.

How to Make Hot Fudge Brownies

For full details on how to make Hot Fudge Brownies, see the recipe card down below ๐Ÿ™‚

Step 1: Make Brownies

Start by stirring a boxed brownie mix together. See? EASY is the name of the game. Pour this into a greased 9×9 dish and pop it into the oven. Lick out the bowl. This is a very important step.

Step 2: Make Hot Fudge

While the brownies are cooking, you can make some hot fudge! Who knew it was so easy to make?! All you do is boil some cream, cocoa, corn syrup, salt, chocolate chips, and brown sugar together. Cook a few minutes, then remove from the heat and stir in some butter, vanilla, and a few more chocolate chips. That’s it! Can you believe it? Yeah, amazing.

Step 3: Spread Hot Fudge

And just like that, the brownies are done! Poke a whole bunch of holes in your brownies and pour on 3/4 cup of hot fudge. Make sure to make a bunch of holes! You want the whole thing drenched!! I used a fork, but if I were to do it again, I’d use something bigger…like the end of a wooden spoon or something. Spread the hot fudge over the warm brownies to make sure it gets into every crevice and let these sit for 10 minutes before serving.

Step 4: Top With Ice Cream

Cut into squares and top with vanilla ice cream. Serve right away and enjoy the heavenly goodness!

hot fudge brownie with ice cream on top

More Brownie Recipes to Try!

Here’s the printable. Enjoy!

5 from 8 votes

Hot Fudge Brownie

If you're looking for ridiculously decadent brownies, you've come to the right place. This Hot Fudge Brownie recipe is SO good!
servings 12 servings
Prep Time 20 mins
Cook Time 25 mins
Total Time 45 mins


  • 1 box brownie mix + eggs, oil and water

for the hot fudge-

  • 2/3 cup heavy cream
  • 1/2 cup light corn syrup
  • 1/3 cup brown sugar
  • 1/4 cup unsweetened cocoa powder
  • 1/4 teaspoon salt
  • 3/4 cup chocolate chips divided in half
  • 1 1/2 tablespoons unsalted butter
  • 1 teaspoon vanilla extract
  • Vanilla ice cream
  • maraschino cherries for garnish


  • Make and bake a box of brownies according to package directions.
    pouring brownie batter
  • While brownies are baking, place cream, corn syrup, brown sugar, cocoa, salt, and half the chocolate chips into a small saucepan. Place over medium heat and stir frequently until it comes to a boil. Reduce the heat to low and lightly simmer for 5 minutes. Remove from heat and whisk in remaining chocolate, butter, and vanilla. Pour sauce into a separate bowl to cool until brownies are done baking.
    ingredients in pot
  • Once brownies are done baking, cool 5-10 minutes and poke holes into it. Drizzle 3/4 cup prepared hot fudge overtop brownies and spread to saturate evenly. Sit another 10 minutes or so, then cut into squares and serve with ice cream and cherries.
    pouring hot fudge on top of brownies


Calories: 371kcal | Carbohydrates: 59g | Protein: 3g | Fat: 14g | Saturated Fat: 7g | Cholesterol: 24mg | Sodium: 196mg | Potassium: 45mg | Fiber: 1g | Sugar: 45g | Vitamin A: 263IU | Vitamin C: 1mg | Calcium: 31mg | Iron: 2mg
Course: Dessert
Cuisine: American
Keyword: Hot Fudge Brownie

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Recipe Rating

23 Responses
  1. Amy

    5 stars
    I made the hot fudge yesterday and it’s amazing! Love it. Had it with my fave brownies, skor ice cream, and whipped cream! So good and so easy.

    Tomorrow I’m making your roasted red pepper and goat cheese Alfredo, can’t wait!

  2. Kristy @ Sweet Treats & More

    I told myself this week I’d start eating healthy. But crap, these look so good all I can think about now is brownies!

  3. Valerie @ From Valerie's Kitchen

    Haha, okay just laughed out loud because I’m on a “eat healthy and avoid sugar” phase myself. That’s why I only had one taco tonight ๐Ÿ™‚ The image of this dessert is practically killing me right now.

  4. Chels R.

    I rewatched Felicity after I had my son. I so did not care for the ending. I mean, what is up with that going back in time thing-Whateve! This looks delish!

  5. Marilyn Brennan

    Your best post comment yet “Lick out the bowl. This is a very important step.” And there’s Brooke’s picture doing it!! I Laughed Out Loud!