Large eggs2
Chocolate bars (2 oz. each)4 bars
Unsalted butter2 sticks
All-purpose flour1 ½ cups
Baking soda1 tsp
Cocoa powder½ cup
Brown sugar¾ cup
Granulated sugar¾ cup
Kosher salt1 ½ tsp
Vanilla extract1 Tbsp
90 minutes
Chop 2 chocolate bars into large chunks (3–4x bigger than chips) and set aside. Chop 2 more bars into 20 pieces for topping. Brown butter by melting unsalted butter in a saucepan over medium-low heat, stirring until it foams and browns, about 7–9 minutes. Transfer to a bowl and cool 5 minutes. In another bowl, whisk flour, baking soda, and cocoa powder. In the cooled butter, whisk brown sugar, granulated sugar, and salt. Add 1 egg and whisk, then add the second egg and vanilla, whisking until glossy. Stir in dry ingredients, then the large chocolate chunks. Let dough rest at room temperature for 1 hour. Preheat oven to 375°F (190°C). Scoop ping-pong sized dough balls (about 3 Tbsp each) onto lined baking sheets. Press a couple of chocolate chunks on top. Bake, rotating pans halfway, until edges are set but centers are soft, 8–10 minutes. Tap pans on stovetop to flatten slightly. Cool on sheet 10 minutes, then transfer to a wire rack.