In a medium bowl combine melted butter and cocoa and stir until cocoa is dissolved.
Add sugar and mix well.
Add the eggs one at a time and stir until well combined.
Stir in the vanilla, flour and salt until you no longer see any flour (do not overmix).
Fold in your addins if using any.
Spread in pan and bake for approximately 25 minutes.
Do Not Over-Bake -- your brownies will come out dry. Adjust time/temp accordingly for your oven. If you do the knife/toothpick test, it should come out with moist crumbs, not clean.
Cool completely before cutting into squares.
Recipe Notes
Do Not Over-Bake -- your brownies will come out dry. Adjust time/temp accordingly for your oven. If you do the knife/toothpick test, it should come out with moist crumbs, not clean. Cool completely before cutting into squares.