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Hot Fudge Brownie Sundaes are a decadent treat you can easily make at home! Rich and fudgy homemade brownies are topped with vanilla ice cream and a 5-Minute Hot Fudge Sauce that tastes better than any hot fudge you’ve ever had! Add a cherry on top, and you’ll think you’ve been transported to your local ice cream shoppe.

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Why you’ll love these Brownie Sundaes:

  • Fudgy Brownies – I’m using my tried & true Fudgy Brown Butter Brownies for these sundaes – everyone who tastes them instantly falls in love with their rich chocolate flavor and fudgy texture.
  • 5-Minute Homemade Hot Fudge – I bet you didn’t know that you can make world class tasting hot fudge at home in 5 minutes! It takes just a few ingredients and hardly any effort.
  • Easy & Customizable Recipe – Not only are the brownies and hot fudge easy, you can easily customize this treat with fun ice cream flavors (strawberry! mint! chocolate!) and toppings (whipped cream! sprinkles! nuts!).
A close-up on a brownie topped with ice cream, hot fudge, and a cherry.

Ingredient Overview:

As always, the full recipe with measurements & directions can be found in the recipe card at the bottom of this post. Use the table of contents (back at the top, below the first image, to navigate).

  • Butter – I always use salted butter because in my experience, it lends the best flavor, but feel free to use unsalted butter if that’s what you prefer.
  • Vegetable Oil – Since vegetable oil remains a liquid at room temperature (unlike butter) it’s instrumental in keeping baked goods of all kinds tender & moist. I used to make brownies with all butter but trust me – swapping out some of the butter for oil gives huge payoff in the moisture department, without sacrificing on flavor!
  • Eggs – Use large eggs, at room temperature.
  • Sugars – Using a combination of granulated sugar and powdered sugar makes it easier for all the sugar to dissolve, which is key to achieving the paper thin, shiny crust!
  • Vanilla – Use real vanilla extract for best results.
  • Salt – A little salt is key to any recipe – savory or sweet!
  • All-purpose flour – Spoon your flour into the measuring cup, then level it with a flat utensil for best results, or use a scale. Scooping the measuring cup directly into your flour will lead to too much flour, and a potentially dry bake.
  • Chocolate – I like using a mix of chocolates in the hot fudge to give it the perfect balance of flavors – not too sweet, but not bitter either.
  • Evaporated Milk – Yes, you need to use a can of evaporated milk vs. regular milk. Evaporated milk is milk with about 60% of the water removed – this helps the hot fudge thicken.

Recipe Substitutions & Variations:

  • Gluten-free – Make my Fudgy Gluten-Free Brownies to make this recipe gluten-free!
  • Dairy-free – Use your favorite, trusted, dairy-free butter and chocolate to make the brownies dairy-free. Use your favorite dairy-free ice cream. I don’t think you can purchase a dairy-free equivalent of evaporated milk, so you’ll need to purchase ready made hot fudge sauce that’s dairy-free or find a recipe.
  • Toppings – Have fun with toppings! Get creative and use whatever you like – Homemade Whipped Cream, sprinkles, chopped nuts, 10-Minute Homemade Salted Caramel Sauce, Strawberry Compote, etc.

How to Make this Hot Fudge Sundae Recipe:

Step 1: Make the Brownies. Combine all brownie ingredients as directed in the recipe card below. If you want a simpler brownie recipe with minimal ingredients, make my 5-Ingredient Brownies instead.

A bowl of brownie batter.
The baked and sliced brownies.

Step 2: Make the Hot Fudge. Heat together evaporated milk, chocolate, and sugar in a medium pan until it reaches a low boil. Remove from the heat and stir in the butter and vanilla. The fudge will thicken as it cools.

A pot of chocolate, evaporated milk, and sugar being mixed together.
A pot of the silky hot fudge.

Step 3: Assemble your Sundaes. Serve each brownie with a scoop of vanilla ice cream, a generous drizzle of hot fudge, and a cherry! Whipped cream and sprinkles would be fun, too.

Hot fudge being poured over ice cream atop a fudgy brownie.
A brownie on a plate, topped with a scoop of ice cream, hot fudge, and a cherry.

Serving + Storing:

Enjoy your hot fudge sundae immediately once assembled! Store leftover hot fudge in an airtight container in the fridge for up to 2 weeks. Gently reheat on the stovetop or in the microwave.

Store brownies in an airtight container at room temperature for 2-3 days, reheating gently before topping. Use leftover hot fudge in my S’mores Milkshakes or in my Peppermint Hot Fudge Bars!

Expert Baking Tips:

  • Oven Thermometer – An oven thermometer will tell you if your oven is actually running at the temperature you set it to. Your oven may not be accurate. Accurate oven temperature is crucial for most bakes, so I leave an oven thermometer in at all times to keep an eye on my oven’s calibration.
  • Kitchen Scale – A food scale is the best way to make sure your flour is at the proper weight, since amounts will vary SO widely based on how you measure it, as well as the measuring cup you use, as they are not standardized.
  • Glass vs. Metal Pan – Glass is a poor conductor of heat, making it a poor option for baking. It will bake the edges of your brownies faster than the center. Metal conducts heat faster and more evenly, making it the universal choice for bakers. A metal pan will produce perfectly fudgy, evenly-baked brownies every time.
  • Don’t Over Bake – Do not over bake these brownies, or I will take away your baking license! But really – use the doneness indicators that I give in the recipe card. Dry brownies are not a fun experience!
  • Slicing Picture Perfect Brownies – Use a plastic knife to slice clean squares – the brownies won’t stick to plastic! Or, use a chef’s knife but run it under hot water first, then clean and repeat this between each cut.
A close-up on a brownie sundae, with melty vanilla ice cream pooling on the plate.

FAQs:

Can I double or halve this recipe?

Yes! If cutting in half, bake in an 8×8 pan, starting with 15 minutes, and add a few minutes at a time as needed. You’ll have a very thin brownie. If doubling, bake in a 9×13 pan, starting with 25 to 28 minutes, adding a few minutes at a time and checking for doneness as indicated in the recipe card.

Can I skip browning butter for the brownies?

You can, but I highly recommend it – it enhances the chocolate flavor beautifully! However, if skipping, start with 140 grams of butter or 1/2 cup + 2 tbsp.

Can I use store bought hot fudge?

You certainly can, but nothing compares to the taste of homemade, and it’s the easiest part of this recipe! If you’re in a pinch, I’d make box mix brownies and make the hot fudge yourself.

Hot fudge melting over a scoop of vanilla ice cream atop a fudgy brownie on a plate.

Special Tools:

More Brownie Recipes to Love:

Photography for this recipe is courtesy of Creating Kaitlin. All other photography on Blue Bowl Recipes is by myself, Stephanie Simmons, unless otherwise credited.


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A brownie topped with vanilla ice cream, hot fudge, and a cherry - all in a parfait glass.
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Brownie Hot Fudge Sundaes

By Stephanie Simmons
Hot Fudge Brownie Sundaes are a decadent treat you can easily make at home! Rich and fudgy homemade brownies are topped with vanilla ice cream and a 5-Minute Hot Fudge Sauce that tastes better than any hot fudge you've ever had! Add a cherry on top, and you'll think you've been transported to your local ice cream shoppe.
Prep: 15 minutes
Cook: 42 minutes
Total: 57 minutes
Servings: 9 to 12 servings
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Ingredients 

For the Brownies:

  • 3/4 cup salted butter, cubed, 170 grams before browning, 140 grams after
  • 4 ounces semi-sweet chocolate, chopped, Chocolate chips work, too. 113 grams
  • 1/4 cup vegetable oil, 56 mL
  • 3/4 cup cocoa powder, 63 grams
  • 3 large eggs, at room temperature
  • 1 large egg yolk, at room temperature
  • 3/4 cup granulated sugar , 158 grams
  • 1 and 1/2 cups powdered sugar , 174 grams
  • 2 tsp vanilla extract
  • 1/4 tsp salt
  • 1/2 cup all-purpose flour , 65 grams
  • pinch of espresso powder, optional
  • 1 cup semi-sweet chocolate chips, You can omit this in a pinch, but it does create delightful pockets of melted chocolate in each brownie! 177 grams

For the Hot Fudge

  • 1/4 cup dark chocolate chips, 47 grams
  • 3/4 cup semi-sweet chocolate chips, 143 grams
  • 1 cup milk chocolate chips, 190 grams
  • one 12-ounce can evaporated milk
  • 1/2 cup granulated sugar , 105 grams
  • 1 and 1/2 tsp vanilla extract
  • 1 tbsp salted butter, 14 grams

For Assembling

  • vanilla bean ice cream
  • cherries
  • whipped cream, sprinkles, etc.

Instructions 

For the Brownies

  • Prep: Preheat your oven to 350℉. Spray a 8×8 metal pan with nonstick spray and line with parchment paper (this makes for easy removal & slicing later).
    Note: A 9×9 pan is fine, too. Start with about 6-7 minutes less bake time as the layer of brownie will be thinner.
  • Brown the Butter: Add cubed butter to a medium saucepan over medium heat. Melt the butter, stirring occasionally. Once it's melted, turn the heat to medium-low, and continue cooking the butter, stirring frequently. The butter will get foamy and bubbly, then turn a deep golden shade with a nutty, caramely aroma. (This will take about 3-6 minutes once the butter has melted.)
    Once the butter is browned, stir in your semi-sweet chocolate until completely melted, then whisk in the vegetable oil and cocoa powder. Set aside to cool slightly.
    See note below if you want to skip browning the butter.
    3/4 cup salted butter, cubed, 4 ounces semi-sweet chocolate, chopped, 1/4 cup vegetable oil, 3/4 cup cocoa powder
  • Make the Brownie Batter: In a large mixing bowl, add the eggs, egg yolk, and granulated sugar. Whisk for about 1-2 minutes, until the sugar is fully dissolved. (Feel the mixture between your fingers – if it's completely smooth, you're good! If you feel sugar granules, keep whisking.) Next, whisk in the powdered sugar, vanilla, and salt. Then, check that the chocolate mixture is no longer piping hot (it will be quite warm, though), and whisk it into the bowl of eggs/sugar/. Fold in the flour & espresso powder, then the chocolate chips. The brownie batter won't be very thick.
    3 large eggs, at room temperature , 1 large egg yolk, at room temperature , 3/4 cup granulated sugar , 1 and 1/2 cups powdered sugar , 2 tsp vanilla extract , 1/4 tsp salt, 1/2 cup all-purpose flour , pinch of espresso powder, 1 cup semi-sweet chocolate chips
  • Bake: Pour the batter into your prepared pan, and bake for 29 to 32 minutes. The center will have the *slightest* wobble when you move the pan, and the outer edges will appear set. The top will be shiny, and a toothpick inserted into the center will have some thick batter, with a smattering of moist crumbs. A toothpick inserted into the edge will be nearly clean. Don't over bake! I promise these will set up to the perfect fudgy (but not raw) texture as they cool.
    Note: If you're worried about under baked brownies, use an instant read thermometer to check them – they should be about 210℉ to 218℉ in the center without touching the bottom of the pan.

For the Hot Fudge

  • Make the Hot Fudge: While the brownies are cooling, make the hot fudge.
    Add the chocolate, evaporated milk, and sugar to a medium saucepan. Heat over medium heat until it just reaches a low boil, stirring constantly. Once it reaches the low boil, remove it from the heat and stir in the butter and vanilla.
    The sauce will thicken more as it cools. Leftover hot fudge can be stored in an airtight container in the fridge for up to 2 weeks and reheated gently.
    1/4 cup dark chocolate chips, 3/4 cup semi-sweet chocolate chips, 1 cup milk chocolate chips, one 12-ounce can evaporated milk, 1/2 cup granulated sugar , 1 and 1/2 tsp vanilla extract , 1 tbsp salted butter
  • Serve & Store: Once the brownies have been cooling for about 1 to 1.5 hours, slice and top each brownie with a scoop of vanilla ice cream, hot fudge, and a cherry!
    Store leftover brownies, cooled, in an airtight container at room temperature for 3-4 days. I highlyyy recommend warming leftover slices back up in the microwave before making sundaes with leftovers.
    vanilla bean ice cream, cherries, whipped cream, sprinkles, etc.

Notes

Butter: You can skip browning the butter if pinched for time. But, make sure you begin with just 140 grams of melted butter, rather than 170 grams if skipping the browning step.
Cocoa Powder: Because this recipe uses no baking powder/soda, you can use any type of cocoa powder (dutch process and natural cocoa powder normally can not be used interchangeably because of how they react with baking powder vs. baking soda). You can use dutch process, natural, or black cocoa powder (black cocoa is the type they use in oreos – it makes these brownies taste a bit like oreos!). 

Nutrition

Serving: 1brownie

Nutrition information is automatically calculated, so should only be used as an approximation.

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Stephanie Simmons

I’m a Mom & Grandma-taught cook + baker, and I’m excited to share my love of all things food with you!

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