Preheat your oven to 350°F (175°C) and grease an 8×8 inch baking pan.

In a medium bowl, combine melted butter, sugar, eggs, and vanilla extract. Mix until well blended.

In another bowl, whisk together cocoa powder, flour, salt, and baking powder.

Gradually add the dry ingredients to the wet mixture, stirring until just combined.

Pour the batter into the prepared baking pan and spread it evenly.

Bake for 20-25 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs.

Allow the brownies to cool completely in the pan before cutting into squares.

Prep Time: 10 minutes