Step 1

Preheat oven to 350°F. Grease a 9x13-inch baking pan with butter or nonstick spray. Line with parchment paper, leaving an overhang over the sides and grease once more. Set aside.

Step 2

In a large bowl, stir together melted butter, both sugars, eggs, and vanilla until smooth.

Step 3

Sift in flour, cocoa powder, and salt and stir until just combined but don't overmix. Fold in 1 cup of the chocolate chips.

Step 4

Spread batter evenly in prepared pan and sprinkle with remaining chocolate chips.

Step 5

Bake until brownies are just set, 25-30 minutes. Remove from oven and let cool before slicing and serving. Enjoy!