01 -
Preheat oven to 350°F. Lightly grease a 9x13-inch baking dish and set aside.
02 -
In a large bowl, stir together the melted butter, brown sugar, granulated sugar, and vanilla extract until well-combined and smooth.
03 -
Add the eggs one at a time, mixing well after each addition, until the mixture is thoroughly blended and slightly thickened.
04 -
In a separate bowl, combine the flour, cocoa powder, and salt. Add this dry mixture to the wet ingredients and stir just until incorporated. Be careful not to overmix.
05 -
Fold in the mini chocolate chips, distributing them evenly throughout the batter.
06 -
Pour the batter evenly into the prepared baking dish. Bake for 25-30 minutes. The edges should look dry and set, but the center should still have fudgy crumbs (not wet batter) when a toothpick is inserted.
07 -
Let the brownies cool completely in the pan to room temperature before cutting into squares. This helps them set up properly and makes for cleaner cuts.