Preheat the oven to 175ºC conventional oven.
Prep a 20x20 cm square pan with parchment paper.
Melt the butter and chocolate over a double boiler or in the microwave.
125 g butter, 125 g dark chocolate chips
In a bowl add the brown sugar and granulated sugar. Pour the melted butter and chocolate over it and with a hand whisk, whisk it together.
125 g brown sugar, 100 g granulated sugar
Add the eggs one at a time, and mix until incorperated. Once incorperated, continue giving them a good whisk for 1-2 minutes, as this is what will give them the crinkle top. You will also see, when you whisked enough that it will start to come together in a smooth batter.
2 eggs
Then add the vanilla extract and whisk it until combined.
2 teaspoon vanilla extract
Add the flour, cocoa powder and salt to the batter and gently whisk it together until combined.
150 g all-purpose flour, 2 tablespoon cocoa powder, ¼ teaspoon salt
Pour the batter into the prepared baking pan and smooth it out with the spatular.
Add a few dollops of Nutella and swirl it in.
100 g Nutella
Bake for about 22-24 min. Serve once it’s cooled down. Finish it off with a sprinkle of sea salt.
flaky sea salt