Chocolate Nutella Cookie Bars are so good, you’ll hardly believe they take less than 30 minutes to make. The chocolate cookie bars are stuffed with a layer of Nutella and speckled with chocolate chips for the ultimate chewy dessert.
Preheat the oven to 350ºF. Line an 8-inch square baking pan with foil or parchment paper and spray with non-stick spray. Set aside.
Using a hand-held or stand mixer fitted with a paddle attachment, beat the butter and both sugars together until combined.
Beat in the egg followed by the vanilla.
In a separate bowl, mix the flour, baking soda, salt, and cocoa powder together with a whisk.
Gradually add the flour mixture to the butter mixture and beat until just combined. Stir in the chocolate chips.
Divide the dough in half. Press half the mixture evenly into the bottom of the prepared pan. Spread the Nutella over the dough. Drop pieces of the remaining dough evenly over the top of the Nutella. It's okay if the Nutella isn't completely covered.
Bake for 15-20 minutes or until the bars are set around the edges, but the center is still a little soft. Take care to not overbake.
Remove from the oven and cool completely in the pan on a wire rack. Cut into squares.
Notes
It's important not to overbake the bars. The edges should be set while the center remains a little soft when it's time to remove them from the oven.