1. Preheat & Prepare

• Preheat your oven to 350°F (175°C).
• Grease a 9×13-inch baking pan or line it with parchment paper for easy removal.

2. Make the Brownie Batter

• In a large mixing bowl, whisk together melted butter and cocoa powder until smooth.
• Add in sugar, mixing until combined.
• Beat in the eggs one at a time, ensuring each is fully incorporated before adding the next.
• Stir in vanilla extract.
• In a separate bowl, whisk together flour, salt, and baking powder.
• Gradually fold the dry ingredients into the wet mixture, stirring just until combined.
• If using, gently fold in the chocolate chips.

3. Bake to Perfection

• Pour the batter into the prepared baking pan, smoothing it out evenly.
• Bake for 25-30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs (not wet batter).
• Remove from the oven and let cool completely before frosting.

4. Make the Frosting

• In a mixing bowl, beat together softened butter and cocoa powder.
• Gradually add in powdered sugar, alternating with milk, until smooth and spreadable.
• Stir in vanilla extract for extra depth of flavor.

5. Frost & Serve

• Spread the frosting over the cooled brownies.
• Let the frosting set for about 10 minutes before slicing into squares.
• Enjoy with a glass of milk for the full nostalgic experience!