Now, let’s get to the fun part! Follow these steps to bake your perfect batch of brownies:

1. Preheat your oven to 350°F (175°C) and line a 9×13-inch baking pan with parchment paper, leaving an overhang on the sides for easy removal.
2. In a medium saucepan, melt the butter over low heat. Once melted, remove from heat and stir in the sugar until well combined.
3. Add the eggs one at a time, whisking continuously to ensure a smooth mixture. Stir in the vanilla extract.
4. In a separate bowl, sift together the flour, cocoa powder, salt, and baking powder.
5. Gradually add the dry ingredients to the wet mixture, stirring until just combined. Be careful not to overmix; this ensures the brownies stay tender.
6. Fold in the chocolate chips and nuts, if using. Pour the batter into your prepared baking pan, spreading it evenly with a spatula.
7. Bake for 25-30 minutes or until the edges start to pull away from the pan and the center is set but still slightly gooey. A toothpick inserted should come out with a few moist crumbs.
8. Allow the brownies to cool completely in the pan before using the parchment overhang to lift them out. Cut into squares and enjoy!

A little tip from my kitchen to yours: If you find yourself tempted to cut into them immediately, I understand! But letting them cool ensures you get those clean, sharp edges.