Ingredients
1 cup unsalted butter, melted
1 cup packed brown sugar
¾ cup unsweetened cocoa powder
1½ cups all-purpose flour
1 teaspoon baking powder
½ teaspoon sea salt
3 large eggs
6 ounces dark chocolate, melted
1 teaspoon vanilla extract
½ teaspoon espresso powder (optional)
Flaky salt or vanilla ice cream for serving
Instructions
Preheat oven to 350°F (175°C) and line a rectangular baking pan with parchment paper.
In a large bowl, whisk melted butter with brown sugar until glossy and smooth.
Add eggs one at a time, followed by vanilla extract and melted dark chocolate.
Sift in flour, cocoa powder, baking powder, salt, and espresso powder.
Fold gently until just combined to keep the batter airy.
Pour into prepared pan and smooth the top evenly.
Bake for 25 minutes, until the edges are set and the center still trembles slightly.
Let rest for 10 minutes before slicing to preserve the molten core.
Serve warm with a drizzle of ganache, vanilla ice cream, or a sprinkle of sea salt.
Notes
Underbake slightly for the perfect molten texture.
Use quality dark chocolate (60–70% cocoa) for depth and shine.
Avoid microwaving leftovers; reheat gently in the oven at 325°F for 5 minutes.
Pair with whipped cream or espresso syrup for extra indulgence.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Melty Desserts
- Method: Baking
- Cuisine: French-Inspired / Modern Comfort
