Darker, richer, and fudgier than Brownies Cockaigne, this is our idea of the perfect, modern brownie.
Preheat the oven to 350°F. Grease a 9-inch square baking pan and line with parchment paper so it extends over 2 sides.
Melt, stirring frequently, in a large saucepan over low heat:
Whisk in until the sugar is dissolved:
Whisk in until just combined:
Stir in just until combined:
Scrape into the prepared pan. If desired, sprinkle over the top:
Bake until a toothpick inserted in the center comes out with moist crumbs attached, 18 to 20 minutes. Let cool completely in the pan on a rack before cutting.