Preheat your oven to 350°F (175°C). This ensures your brownies bake evenly.
Line your brownie bite pan or mini muffin tin with parchment paper or grease it well with butter to prevent sticking.
In a medium saucepan over low heat, melt the unsalted butter. Remove from heat once fully melted and let it cool slightly.
In a mixing bowl, whisk together the melted butter, granulated sugar, and salt until well combined. Then, add in the eggs and vanilla extract, mixing until smooth.
In another bowl, sift together the all-purpose flour and Dutch process cocoa powder. Gradually add this mixture to the wet ingredients, stirring gently until just combined.
Gently fold in the mini semi-sweet chocolate chips into the batter, ensuring they are evenly distributed.
Spoon the batter into the prepared pan, filling each cavity about 2/3 full. Be careful not to overfill them.
Bake in the preheated oven for 12-15 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs.
Let the Brownie Bites cool in the pan for a few minutes before transferring them to a wire rack. Once cooled, dust with the additional cocoa powder for a finishing touch!
