Preheat your oven to 350°F and grease a 9x13-inch baking pan.
This helps ensure the brownies don’t stick.
In a large bowl, mix melted butter and sugar until smooth. Stir in eggs one at a time.
Add vanilla extract and combine thoroughly.
In a separate bowl, whisk together flour, cocoa powder, and salt.
Gradually add the dry mixture to the wet ingredients, stirring until just combined.
Pour the batter into the prepared pan. Use a spatula to spread it evenly.
Bake in the preheated oven for 25 to 30 minutes.
The brownies are ready when a toothpick inserted into the center comes out with a few crumbs.