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This brownie uses only enough flour to keep it all together, keeping the center super rich and fudgy.
INGREDIENTS
4 oz. dark chocolate, coarsely chopped
1/4 c. butter, softened
1/4 c. granulated sugar
1/4 c. light brown sugar
1 large egg, at room temperature
1 tsp. pure vanilla extract
1/4 tsp. kosher salt
1 tbsp. cocoa powder
1/3 c. all-purpose flour
1/4 c. milk chocolate chips
1/4 c. white chocolate chips
1/4 c. dark chocolate chips
Ice cream, for serving
Warm hot fudge, for serving
DIRECTIONS
Preheat oven to 350掳 and butter a 5" cast-iron skillet.
In a microwave-safe medium bowl, heat chocolate and butter until completely melted and smooth. Add sugars and whisk until completely combined, then add egg and vanilla and stir until combined.
Add salt, cocoa powder, and flour, then fold flour mixture into chocolate mixture using a rubber spatula until just a bit of flour mixture remains visible. Gently fold in all chocolate chips.
Bake until toothpick comes out mostly clean, 28 to 30 minutes. Serve warm with ice cream and hot fudge.
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