1/2cupunsweetened cocoa powder I prefer and use the Hershey's Dark Cocoa
1stick salted butter melted and hot to the touch
1/2cuppacked brown sugar light or dark
1tablespoonpure vanilla extract
Preheat oven to 350 degrees F. and line an 8 x 8 inch baking dish with parchment paper.
Place flour, cocoa powder and salt in a large mixing bowl, stir to combine. Place hot melted butter, oil, and sugars into a medium mixing bowl. Whisk until well combined, a good minute. Stir in eggs and vanilla, whisking another 2 minutes. Slowly stir wet ingredients into the dry ingredient bowl, gently stirring just until batter forms. Fold in chocolate chips and transfer half of the batter to baking dish. Spread evenly and top with cookie scoop fulls of Nutella evenly over top. Take an offset spatula and spread evenly. Top with remaining brownie batter, spreading evenly. Bake for 28-30 minutes, until baked through. Remove from oven and let cool for at least 1 hour before cutting into squares. Serve room temperature or warmed with a scoop of ice cream.