These Dark Chocolate Brownies are made for serious chocolate lovers. They have thin, slightly crackly tops, dense fudgy centers, chewy edges, and pockets of melted dark chocolate in every bite.

The deep chocolate flavor comes from using both unsweetened cocoa powder and real dark chocolate, while brown sugar and an extra egg yolk keep the centers rich and moist. A touch of espresso powder is optional, but it intensifies the cocoa without making the brownies taste like coffee.

Serve them plain, dusted with powdered sugar, or slightly warm with vanilla ice cream for a classic American dessert.

Ingredients

For the Brownies

¾ cup (170g) unsalted butter
6 ounces (170g) dark chocolate, preferably 60–70% cacao, chopped
¾ cup (150g) granulated sugar
¾ cup (150g) packed light brown sugar
3 large eggs, room temperature
1 large egg yolk
2 teaspoons pure vanilla extract
¾ cup (95g) all-purpose flour
½ cup (45g) unsweetened cocoa powder
½ teaspoon kosher salt
½ teaspoon espresso powder, optional
1 cup (170g) dark chocolate chips or chopped dark chocolate
Flaky sea salt, optional

How to Make Dark Chocolate Brownies

Step 1 – Prepare the Pan

Preheat the oven to 350°F (175°C).

Lightly grease an 8x8-inch metal baking pan and line it with parchment paper, leaving some overhang on two sides.

The parchment makes it easy to lift the brownies out later for clean slicing.

Step 2 – Melt the Butter & Dark Chocolate

Place the butter and 6 ounces of chopped dark chocolate in a heatproof bowl.

Microwave in 20–30 second intervals, stirring between each interval, until smooth.

Alternatively, melt them together over a double boiler.

Set aside for about 5 minutes so the mixture remains warm but isn't extremely hot.

Step 3 – Whisk the Eggs & Sugars

In a large bowl, combine:

Granulated sugar
Brown sugar
Eggs
Extra egg yolk
Vanilla

Whisk vigorously for approximately 1–2 minutes.

The mixture should become glossy and slightly lighter.

This step helps create that desirable thin, shiny, crackly brownie top.

Step 4 – Add the Melted Chocolate

Slowly pour the warm chocolate-butter mixture into the egg mixture while whisking.

Continue until completely smooth and glossy.

Step 5 – Combine the Dry Ingredients

In another bowl, sift together:

Flour
Cocoa powder
Salt
Espresso powder, if using

Sifting helps eliminate cocoa lumps.

Step 6 – Fold Everything Together

Add the dry ingredients to the chocolate mixture.

Use a rubber spatula to gently fold everything together.

Stop when only a few streaks of flour remain.

Step 7 – Add More Dark Chocolate

Fold in the dark chocolate chips or chopped chocolate.

Don't overmix the batter.

The finished batter should be thick, glossy, and intensely chocolatey.

Bake the Brownies

Spread the batter evenly into the prepared pan.

Press a few extra pieces of dark chocolate into the top if desired.

Bake at 350°F (175°C) for approximately 27–34 minutes.

The brownies are ready when the edges are set and the center no longer looks liquid.

Insert a toothpick about 2 inches from the edge. It should come out with thick, moist chocolate crumbs.

A perfectly clean toothpick usually means the brownies have been baked too long if you're aiming for a fudgy center.

Cool Before Slicing

Let the brownies cool completely in the pan for approximately 1½–2 hours.

Use the parchment overhang to lift them from the pan.

For exceptionally neat, dense bakery-style slices, refrigerate the cooled brownies for another 30–60 minutes before cutting.

Use a large sharp knife and wipe the blade clean between cuts.

Chef's Tips for Ultra-Fudgy Brownies

Use good-quality dark chocolate. It makes a noticeable difference here.
Choose 60–70% cacao for a rich flavor that isn't overwhelmingly bitter.
Use both cocoa powder and melted chocolate for deeper chocolate flavor.
Don't eliminate the brown sugar—it contributes moisture and chewiness.
The extra egg yolk adds richness without making the brownies cakey.
Whisk the eggs and sugars thoroughly for a shinier top.
Don't overmix once the flour is added.
Don't overbake.
Remember that brownies continue setting as they cool.
Use a metal pan for more predictable baking and better edges.
Let them cool before slicing, even though waiting is difficult.

The Secret to Deep Dark Chocolate Flavor

The best dark chocolate brownies don't depend on just one source of chocolate.

This recipe combines melted dark chocolate + cocoa powder + dark chocolate chunks.

The melted chocolate creates richness and density. Cocoa powder intensifies the chocolate flavor without adding excessive fat, while the chopped chocolate creates molten pockets throughout the brownies.

The optional espresso powder works in the background to make the chocolate taste even deeper.

You shouldn't need enough espresso to make the brownies taste like coffee.

The Secret to a Fudgy Center

A fudgy brownie needs a relatively high fat-to-flour ratio.

That's why this recipe contains plenty of butter and chocolate but only ¾ cup flour.

There's also no baking soda or baking powder.

Leavening would push the texture toward light and cakey, while these brownies are meant to stay dense and rich.

The final secret is timing: pull them from the oven while moist crumbs still cling to your tester.

Choosing Your Dark Chocolate

60% Cacao

Sweeter and approachable, with plenty of dark chocolate flavor.

70% Cacao

A great choice for a more intense, sophisticated brownie.

85% Cacao

Very dark and considerably more bitter. If using it for all the melted chocolate, the brownies will have a much less sweet profile.

For most people, 60–70% dark chocolate provides the best balance.

Delicious Variations

Salted Dark Chocolate Brownies

Sprinkle flaky sea salt over the brownies immediately after baking.

The salt makes the dark chocolate flavor pop.

Dark Chocolate Espresso Brownies

Increase the espresso powder to 1½ teaspoons.

Dark Chocolate Walnut Brownies

Fold in ¾ cup toasted chopped walnuts.

Dark Chocolate Pecan Brownies

Add ¾ cup toasted pecans.

Raspberry Dark Chocolate Brownies

Scatter approximately ¾ cup fresh raspberries over the batter immediately before baking.

Peanut Butter Swirl Brownies

Warm ½ cup creamy peanut butter slightly and swirl spoonfuls through the brownie batter.

Triple Chocolate Brownies

Use a combination of dark, semisweet, and milk chocolate chunks.

Dark Chocolate Caramel Brownies

Swirl thick caramel sauce through the top of the batter before baking and finish with flaky sea salt.

For Extra-Gooey Brownies

Bake toward the lower end of the recommended baking range.

The center should be set enough that it doesn't slosh when the pan is gently moved, but it shouldn't look dry.

Let the brownies cool completely before deciding they're underbaked.

Fresh from the oven, the center can seem extremely soft because the melted chocolate hasn't had time to set.

Once cooled, it develops that dense, truffle-like brownie texture.

What to Serve With Dark Chocolate Brownies

Try them with:

Vanilla bean ice cream
Whipped cream
Fresh strawberries
Fresh raspberries
Salted caramel sauce
Hot fudge
Cold milk
Hot coffee
Espresso

For an easy restaurant-style dessert, warm a brownie slightly and top it with vanilla ice cream, chocolate sauce, and a tiny pinch of flaky sea salt.

Make-Ahead Tips

Dark chocolate brownies are excellent made a day ahead.

In fact, their texture often becomes even denser and fudgier after resting overnight.

Bake and cool completely, then cover tightly.

Don't cut them until shortly before serving if you want to preserve maximum moisture.

Storage

Room Temperature

Store brownies in an airtight container for approximately 4–5 days.

Place parchment between layers to prevent sticking.

Refrigerator

For a dense, almost truffle-like texture, refrigerate them for up to 1 week.

Let them come closer to room temperature before serving if you prefer softer brownies.

Freezer

Wrap individual brownies tightly and freeze for up to 2–3 months.

Thaw at room temperature.

How to Reheat

For a warm, gooey brownie, microwave one piece for approximately 8–12 seconds.

The chocolate chunks will soften again without completely overheating the brownie.

Top immediately with vanilla ice cream if desired.

Notes

This recipe makes approximately 16 brownies from an 8x8-inch pan.
For larger portions, cut into 9 squares.
Dutch-process cocoa gives these brownies a particularly dark color and smooth chocolate flavor, while natural cocoa also works.
Don't substitute chocolate syrup for real melted chocolate.
For visible pools of chocolate, reserve some chopped dark chocolate and scatter it across the batter before baking.
If you love the contrast between sweet and bitter, finish the brownies with flaky sea salt.
The most important rule is simple: don't wait for a completely clean toothpick. Moist, fudgy crumbs are exactly what you want.

Dark Chocolate Brownies – Deep, Fudgy & Intensely Chocolatey