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Few desserts deliver the combination of richness, height, and intense chocolate flavor quite like these extra thick fudgy brownies.
Built around both Dutch-processed cocoa powder and chopped unsweetened chocolate, this recipe creates a deeply chocolatey base with a dense, indulgent texture.
Melted unsalted butter adds richness, while vegetable oil helps keep the finished brownies exceptionally fudgy.
The generous amount of granulated sugar also contributes to their characteristic shiny, crackly surface.
What makes these brownies especially appealing is their substantial thickness. Rather than producing a thin, cakey square, the batter fills a 9×9-inch metal pan for tall brownies with a soft, dense center.
Beating the eggs, egg yolks, sugar, and melted chocolate mixture for a full three minutes is an important part of the process, helping build the volume needed for the finished texture.
Once the flour, cocoa powder, and salt are incorporated, the batter becomes noticeably thick before it goes into the prepared pan.
After baking, patience is essential. The brownies need at least four hours to set before slicing, although allowing them to rest overnight is preferred in the original recipe.
This gives the fudgy center time to firm while retaining its rich texture.
Each square is packed with chocolate flavor and has the satisfying contrast of a delicate crackly top and soft interior.
They are an excellent choice when you want a classic chocolate dessert that feels especially decadent and substantial.
Dutch Cocoa Extra Fudgy Brownies
Ingredients
Equipment
Method
- Prepare the Pan: Preheat the oven to 350°F (180°C). Prepare a metal 9×9-inch baking pan with non-stick spray or line it with parchment paper. Do not substitute an 8×8-inch pan, as the full recipe will not fit properly.
- Combine Dry Ingredients: In a medium mixing bowl, whisk together the all-purpose flour, salt, and Dutch-processed cocoa powder until evenly combined.
- Melt Chocolate Mixture: Place the chopped unsweetened chocolate, cubed unsalted butter, and 1½ cups of the granulated sugar in a small saucepan over low heat. Stir occasionally for about 5 minutes, continuing until the chocolate and butter are fully melted. Some of the sugar will dissolve, but the mixture should still appear grainy.
- Beat Sugar Eggs Chocolate: Add the remaining 1½ cups granulated sugar, eggs, egg yolks, and the melted chocolate mixture to a stand mixer or large mixing bowl. Beat for a full 3 minutes, until the mixture has doubled in volume. Set a timer and do not shorten this mixing period.
- Add Oil Vanilla: Add the vegetable oil and vanilla extract, then continue mixing on low speed until incorporated.
- Incorporate Dry Mixture: Gradually add the flour, salt, and cocoa mixture while mixing on low speed. Continue only until the dry ingredients are fully combined. The finished batter will be thick.
- Fill the Pan: Transfer the thick brownie batter to the prepared 9×9-inch metal pan and spread it into the pan.
- Bake the Brownies: Bake at 350°F (180°C) for 38–45 minutes.
- Let the Brownies Set: Remove the brownies from the oven and allow them to set for at least 4 hours before cutting. For the preferred texture, let them set overnight before slicing.
Notes
- Pan size matters: Use a metal 9×9-inch pan. An 8×8-inch pan is not large enough for the full recipe.
- Sugar in the chocolate mixture: The melted mixture will remain somewhat grainy because not all of the sugar dissolves. This is expected.
- Do not shorten the mixing time: Beat the eggs, egg yolks, remaining sugar, and melted chocolate mixture for the full 3 minutes until doubled in volume.
- Expect thick batter: Once the dry ingredients are incorporated, the brownie batter should be thick.
- Allow proper setting: Let the brownies set for at least 4 hours before cutting; overnight setting is preferred.
- Storage: Store in an airtight container at room temperature for up to 3 days. Refrigerate for a firmer texture.
- Make ahead: These brownies can be prepared 1–2 days in advance and kept covered at room temperature or in the refrigerator.
- Freezing: After the brownies have completely cooled and set, cut them into squares, wrap them tightly, and freeze for up to 2 months. Thaw at room temperature or warm slightly before serving.
- Gluten-free option: Replace the all-purpose flour with a 1:1 gluten-free baking flour blend.
Chef’s Secret
The most important detail for achieving the signature thick, fudgy texture is giving the egg, sugar, egg yolk, and melted chocolate mixture the full three minutes of beating time.
This step is easy to rush, but the recipe specifically relies on the mixture doubling in volume.
Set a timer rather than judging the mixing time by appearance alone. Once the flour and cocoa mixture is added, switch to low speed and mix only until everything is combined.
Because the finished batter is naturally thick, excessive mixing at this stage is unnecessary. After baking, resist the temptation to slice the brownies early.
The minimum four-hour setting period allows the dense center to firm up, while an overnight rest gives you the preferred fudgy consistency.
Serving Suggestions
Cut the fully set brownies into 16 squares and serve them as a rich standalone dessert alongside coffee, tea, or a glass of milk.
For a more indulgent presentation, top individual pieces with a scoop of ice cream or add a simple dusting of cocoa powder.
Their dense chocolate flavor also pairs naturally with fresh berries or other fruit for a contrasting accompaniment.
If you prefer a firmer, chilled texture, serve brownies directly from the refrigerator.
For a softer, just-baked-style experience, gently warm a portion after thawing or storage.
Conclusion
These extra thick fudgy brownies are designed for serious chocolate lovers, combining Dutch-processed cocoa, melted unsweetened chocolate, butter, and oil to create rich, dense squares with a soft fudgy center.
A shiny crackly top and substantial height make them especially satisfying, while the extended setting time ensures clean slices and the intended texture.
Whether served fresh, made ahead, refrigerated, or frozen for later, these brownies offer a deeply chocolatey dessert that is both indulgent and wonderfully simple to enjoy.
