• 4 large eggs
  • 106g (1 1/4 cups) Double-Dutch Dark Cocoa or Dutch-Process Cocoa (I used Trader Joe’s Cocoa), sifted
  • 1 tsp coarse salt
  • 1 tsp baking powder
  • 1 tsp espresso powder
  • 1 T vanilla extract
  • 227g (2 sticks, 1 cup) unsalted butter
  • 447g (2 1/4 cups) granulated sugar
  • 177g (1 1/2 cups) all-purpose flour
  • 340g (2 cups) semi-sweet chocolate chips
  • 12 Oreo cookies, quartered,  plus 2 crumbled Oreo cookies, for garnish, optional
  1. Preheat the oven to 350°F, preferably on convection.
  2. Lightly grease a 9″ x 13″ pan or line with parchment paper and coat with cooking oil spray. (I used a pyrex baking dish.)
  3. Crack the 4 eggs into a bowl, and beat them at medium speed with the sifted cocoa, salt, baking powder, espresso powder, and vanilla for about 1 minute, or until smooth. (You can do this while you’re melting your butter (next step).)
  4. In a medium-sized microwave-safe bowl, or in a saucepan set over low heat, melt the butter, then add the sugar and stir to combine. Or simply combine the butter and sugar, and heat, stirring, until the butter is melted.
  5. Continue to heat (or microwave) briefly, just until the mixture is hot (about 110°F to 120°F), but not bubbling; it’ll become shiny looking as you stir it. Heating the mixture to this point will dissolve more of the sugar, which will help produce a shiny top crust on your brownies.
  6. Add the hot butter/sugar mixture to the egg/cocoa mixture, stirring until smooth.
  7. Add the flour and chips, stirring until smooth. Again, adding the chips helps produce a shiny top crust. (Note: Decision time: Do you want chocolate chips that show, and add a bit of chunkiness to your brownies? Or do you want the chips to simply melt into a rich smoothness, perfectly amalgamated within the brownie? **For chips that retain their shape and add chunkiness, let the batter cool for about 20 minutes before adding the chips, stirring occasionally to hasten the process. **For brownies where the chips melt right into the brownie, add them to the hot batter immediately, stirring to combine.
  8. Incorporate the quartered Oreo cookies, if using. (Keeping the Oreos in larger pieces (quarters) made them visible in the finished brownies.)
  9. Spoon the batter into the parchment paper-lined and lightly greased 9″ x 13″ pan. Sprinkle the crumbled Oreo cookies over the top, if using.
  10. Bake the brownies for 27 to 32 minutes, until a toothpick inserted into the center comes out clean, or with just a few moist crumbs clinging to it. The brownies should feel set on the edges, and the center should look very moist, but not uncooked.
  11. Remove them from the oven and cool on a rack before cutting and serving.