Ingredients
- 1 cup all-purpose flour
- 1 1/4 cups packed dark brown sugar, divided
- 6 tablespoons dutch process cocoa powder, divided
- 2 teaspoons baking powder
- 1/4 teaspoon salt
- 1/2 cup whole milk
- 3 tablespoons unsalted butter, melted
- 2 teaspoons pure vanilla extract
- 2 tablespoons cocoa nibs (optional)
- 1 1/2 cups very hot brewed coffee
- whipped cream, slightly sweetened (or vanilla ice cream)
Directions
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Position oven rack in the middle of the oven; preheat oven to 350°.
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Butter an 8-inch square baking pan.
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Whisk together the flour, 3/4 cup brown sugar, 2 tablespoons cocoa, the baking powder, and salt in a medium bowl; breaking up any large clumps of sugar with your hands.
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Stir in the milk, butter, and vanilla with a wooden spoon just until blended; the batter will be very thick.
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Transfer to the baking dish and smooth the top with a rubber spatula.
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Stir together the remaining 1/2 cup brown sugar and 1/4 cup cocoa with a fork in a small bowl; breaking up any large clumps of sugar with your hands.
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Stir in the nibs, if using; sprinkle the mixture evenly over the batter.
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Pour the hot coffee evenly over the batter—do not stir.
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Bake for 30-35 minutes, until the top layer is set and the dessert is beginning to pull away from the sides of the pan; the batter will have separated into cake and pudding layers.
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Cool in the pan on a wire rack for at least 15 minutes.
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Serve hot, warm, or at room temperature in small bowls, with whipped cream or ice cream, if desired.