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Chocolate ganache drips down the sides of a stack of three Dark Chocolate Fudgy Brownies.

Dark Chocolate Fudgy Brownies

Course: Dessert
Cuisine: North American
Keyword: brownies, chocolate, chocolate ganache
Prep Time: 40 minutes
Cook Time: 50 minutes
Total Time: 1 hour 30 minutes
Servings: 9
Calories: 798kcal
Author: Marta Rivera
Dark Chocolate Fudgy Brownies are made with black cocoa powder and covered in two forms of chocolate ganache to create a decadent dessert.
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Equipment

  • 8x8-inch baking dish
  • whisk
  • fine mesh sieve
  • electric hand mixer

Ingredients

For the Dark Chocolate Fudgy Brownies

  • 2 1/2 sticks (1 1/4 cup or 285 grams) unsalted butter sliced
  • 2 cups (425 grams) granulated sugar
  • 1 teaspoon (6 grams) kosher salt
  • 3/4 cup (80 grams) black cocoa powder or dutch-processed cocoa powder
  • 1/4 cup (60 milliliters) espresso cooled
  • 1 teaspoon (5 milliliters) vanilla extract
  • 4 large eggs at room temperature
  • 1 cup (130 grams) all-purpose flour

For the Chocolate Ganache

  • 1 cup (250 milliters) heavy cream
  • 2 cups, chopped (340 grams) semi-sweet chocolate
  • 2 teaspoons (10 milliliters) cognac or vanilla extract

Instructions

  • Preheat an oven to 350°F (177°C).
    Lightly grease an 8 x 8-inch baking dish with baking spray and set it aside.

Make the Brownie Batter

  • In a 3-quart saucier, melt the unsalted butter over medium heat.
    Add the sugar and kosher salt to the pot once most of the butter is melted.
  • Decrease the temperature to medium-low.
    Stir the butter and sugar mixture with a whisk for 2 1/2 minutes, stirring often. The sugar will begin to melt into the butter and create what looks like sludge in the pot. 
  • Whisk the black cocoa powder into the pot once that sludge forms.
    Remove the pot from the stove and set it on a trivet on the counter. Allow the mixture to cool for a full 5 minutes. 
  • Add the espresso and vanilla extract to the pot with the rest of the ingredients.
    Use a whisk to stir everything together until the mixture looks velvety smooth. 
  • Quickly whisk the eggs, one at a time, into the chocolate mixture.
    Add the next egg only after fully incorporating the previous one.  
  • Use a fine-mesh sieve to sift the all-purpose flour into the pot with the rest of the ingredients. 
    Use a rubber spatula or a whisk to blend the flour into the chocolate mixture for about 1 minute. 
    Scrape the brownie batter into the prepared baking dish.
    Bake the brownies at 350°F (177°C) for 40 minutes.

Prepare the Ganache While the Brownies Bake

  • Heat the heavy cream for 1 1/2 minutes in a microwave-safe pitcher with at least 4 inches of headspace in case the cream boils.
    Stir the cognac into the heavy cream with a whisk.
  • Place the chopped chocolate into a 3-quart mixing bowl and pour the hot cream over it.
    Allow the cream and chocolate to sit for 5 minutes to melt the chocolate.
    Stir the chocolate and cream together until smooth after 5 minutes.
  • Remove 1 cup of the chocolate ganache from the rest of the ganache. This cup will be the fluid ganache.
    Allow the ganache to cool completely to room temperature.

Cool the Brownies

  • When done baking, the center of the brownies will have a slight bulge, but this will deflate once it's out of the oven.
    The brownies are done baking when the edges look dry and pull away from the pan slightly.
    Allow the brownies to cool completely, or for about 30 minutes.

Whip the Chocolate Ganache

  • Use the beater attachment of a hand mixer to whip the larger quantity of ganache on medium-high speed for 2 to 3 minutes.
    The ganache will go from a dark brown color to a light, nutty brown color and look fluffy. 

Frost the Brownies and Serve

  • Use an offset spatula to spread the whipped chocolate ganache over the surface of the completely cool brownies. 
    *Chill the brownies if it's a really hot day for 10-15 minutes to firm up the ganache.
  • Heat the reserved chocolate ganache in the microwave for 15 seconds. Stir to make sure it's fluid and pourable. Heat it again for 10-second intervals if it isn't.
    Drizzle the fluid chocolate ganache over the whipped ganache, and your dark chocolate fudgy brownies are ready to serve.

Notes

Swaps and Substitutions:
  • To make dairy-free brownies: replace the butter with vegetable or canola oil. You also need to omit the ganache. 
  • You can cut the amount of black cocoa in half and replace it with regular dutch-processed cocoa. This will give your brownies a more chocolaty flavor.
  • You can substitute the espresso with strong coffee.
  • Replace the semi-sweet chocolate with dark chocolate.
Tips and Techniques:
  • It's important that your chocolate mixture is warm and that you whisk in your eggs quickly. Brownie mix that is too hot curdles the eggs, so working fast is important.
  • Line the brownie pan with parchment paper after greasing it because to get clean edges on your brownies.
  • You can't use the "toothpick test" on fudgy brownies because the center will be slightly gooey when it comes out of the oven.
  • If it's a hot day, put the ganache for whipping in the fridge for 10 minutes to firm up a little bit. 
  • You don't have to top your brownies with any of the ganache. You can just cover it with the whipped or fluid ganache, or leave the brownies naked. 
Make Ahead Ganache:
  • You can make chocolate ganache up to 1 week before you use it.
  • Store prepared chocolate ganache in an airtight food container in the fridge.
  • To melt it again:
    1. Set a metal or glass mixing bowl over a pot of simmering water. Make sure the water isn't touching the bottom of the bowl.
    2. As the ganache melts, use your whisk to stir to combine it into a smooth sauce. 
Storage Instructions:
  • Store brownies in an airtight container for up to 3 days at room temperature.
  • You can also store them in the fridge for up to 5 days.
Freezing Instructions:
  1. To freeze brownies, bake them in a freezer-safe dish.
  2. Once cool, wrap the dish containing the frosted brownies in a layer of plastic wrap, followed by a layer of heavy-duty aluminum foil.
  3. Freeze the brownies for up to 2 months.
  4. To thaw them, remove the dish from the freezer and thaw them at room temperature.

Nutrition

Calories: 798kcal | Carbohydrates: 117g | Protein: 14g | Fat: 35g | Saturated Fat: 20g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 10g | Trans Fat: 0.1g | Cholesterol: 116mg | Sodium: 264mg | Potassium: 916mg | Fiber: 12g | Sugar: 73g | Vitamin A: 540IU | Vitamin C: 0.2mg | Calcium: 102mg | Iron: 8mg