Ingredients You’ll Need & Why It Works:

Superfine Sugar:  Achieving a shiny and elusive crinkly brownie crust is a common goal for many bakers, and there are countless tips and tricks to help achieve it. Some suggest adding chocolate chips before baking, but after numerous test batches, I discovered the best solution is to dissolve your sugar completely. The key is using superfine sugar, which is smaller-grained than regular granulated sugar and dissolves more quickly and evenly. This uniform sugar distribution is crucial when combined with eggs, as it creates a thin layer of meringue that will form and rise to the top of the brownie as a shiny, crinkly crust.

Large Eggs + Egg Yolk: Eggs play a fundamental role in this brownie recipe, as they possess emulsifying properties that help to combine liquids and fats. Adding two eggs and an extra egg yolk will do the trick to add richness and achieve the desired chewy texture in these brownies. But it’s also worth noting that this recipe requires whisking eggs and sugar on high for two full minutes, allowing for a thin layer of meringue to develop and to aerate the batter, giving them a lift.

Unsalted Butter: Unsalted butter is a saturated (solid) fat comprising roughly 80% butterfat. Incorporating butter into this brownie batter enhances its cocoa flavor and texture, contributing to its softness.

Vanilla Extract: Vanilla extract is a secret ingredient that can do wonders for your brownies. It helps to bring out the other ingredients’ nuanced flavors and adds a touch of warmth and depth to the brownies, taking them from good to great.

Unsweetened Dutch Cocoa Powder: Dutch-processed cocoa is an excellent choice for this recipe as it yields a richer and smoother chocolate flavor due to its processing method. This premium cocoa variety is, however, more costly than its natural counterpart but proves to be a worthwhile investment as it can significantly enhance the taste and appearance of the brownies. Additionally, cocoa powder functions similarly to flour in a recipe; therefore, finding the right balance with all-purpose flour is essential. When selecting a Dutch cocoa powder, opting for a product with a higher fat content (22/24) of no less than 20% is advisable.

Vegetable Oil: To give these brownies their moist and chewy texture, some liquid fat, such as vegetable oil, is added in addition to butter. When selecting an oil, opting for a neutral option, such as avocado oil, is best. These types of oil won’t affect the overall taste of the brownies since they have a mild flavor.

All-Purpose Flour: The protein content present in all-purpose flour contributes to the ideal texture of these brownies without making them too cake-like.

Espresso Powder: Espresso powder will boost the taste of the cocoa powder and chocolate chips by accentuating its chocolate notes. It is a subtle addition that can make a big difference in these brownies’ overall depth of flavor.

Tapioca Flour: Tapioca flour contributes to the desired chewy texture of these brownies. However, use it cautiously since too much use can lead to stickiness or gumminess. If tapioca flour isn’t available, you can substitute it with 10 grams of cornstarch.

Table Salt: Adding a pinch of salt to your brownie batter can enhance the chocolate flavor and bring out the complex flavors of the other ingredients.

Baking Soda: Baking soda gives these brownies an extra lift.

Chocolate Chips: Semisweet chocolate chips make an excellent addition to these brownies. They provide a touch of sweetness that complements the cocoa powder’s rich flavor.

Tips For Making Double Chocolate Brownies:

Weigh Ingredients Correctly — Weighing your ingredients accurately is essential for the most optimal outcome of these brownies. A digital food scale is the best way to ensure precise measurements and better results.

Baking Time — To achieve delightfully chewy brownies, bake them at a lower temperature of 325°F for a longer time, in this case, 30 minutes.

Fully Dissolve Sugar — After experimenting with different types of sugar, I’ve found that superfine (castor) granulated sugar produces the best results. The key is ensuring a uniform distribution of superfine sugar and warm melted butter. This process involves vigorously whisking the warmly melted butter and sugar for one minute at high speed until the mixture resembles a glue-like consistency. This initial sugar process sets the groundwork for creating the thin layer of meringue that will grace the surface of your brownies once the eggs are incorporated.

Shiny, Crinkly Top Crust — Once you’ve thoroughly combined the melted butter and sugar, add the eggs and extra egg yolk. Whisk the batter at high speed for two full minutes. This technique will create a delicate meringue layer that will form and rise to the surface during baking.

Overmixing Batter — Be careful not to overmix the brownie batter once the dry ingredients have been added. Once there are no visible white streaks of flour, stop folding. Overmixing can cause the protein in the flour to be overworked, which could result in brownies that are more cake-like in texture.

Underbake Brownies  —To achieve the fudgy texture of these brownies, it’s best to err on the side of underbaking rather than overbaking. After experimenting a bit, I discovered that baking these brownies for 30 minutes was the sweet spot for achieving the perfect fudgy consistency.

Type of Baking Pan — Nonstick aluminized pans work best for baking brownies uniformly. Avoid using darker or glass pans, as they tend to heat up more slowly, leading to uneven baking. Additionally, glass and nonstick ceramic baking pans keep the heat for longer, so the edges of the brownies bake up dry and cakey while the center remains overly underbaked.