Ingredients
8
tablespoons/113 grams unsalted butter, plus more for greasing the pan
1
cup/201 grams granulated sugar
2
large eggs
1 ½
teaspoons vanilla extract
½
cup/64 grams all-purpose flour
¾
cup/71 grams cocoa powder, Dutch-process or natural
¼
teaspoon baking powder
¼
teaspoon kosher salt (Diamond Crystal)
Preparation
- Heat oven to 350 degrees. Grease and line a 13-by-9-inch baking pan with parchment paper, leaving a 2-inch overhang on two sides.
- Prepare the brownie layer: In a medium saucepan combine the butter and sugar, and heat over medium until the butter is melted. Remove from the heat and whisk vigorously until well combined.
- Once the mixture has cooled a bit, whisk in the eggs one at a time. Whisk in the vanilla.
- Add the flour, cocoa powder, baking powder and salt, and stir to combine. Transfer to a medium bowl.
- Prepare the cookie batter: Wash and dry the saucepan. Combine the butter and sugar, and heat over medium until the butter is melted. Remove from the heat and whisk vigorously until well combined.
- Once the mixture has cooled a bit, whisk in the eggs one at a time. Whisk in the vanilla. Add the flour, baking powder and salt, and stir. Stir in ¾ cup of the chocolate.
- Using two cookie scoops, drop each of the batters into the prepared pan. The pattern can be random, and one dough can be on top of the other; just make sure that once all the batter is added to the pan, you have an even thickness spread out across the pan. Sprinkle the remaining ½ cup chocolate on top.
- Bake until the top looks dry and set, and a toothpick inserted into the center comes out with moist crumbs attached, 20 to 22 minutes.
- Transfer to a rack to cool completely, about 45 minutes. Lift the bar out using the paper and transfer to a cutting board. Cut into bars to serve.