Blend together the butter and cocoa. Stir until cocoa is dissolved. Add sugar and the eggs. Mix. Add the flour, vanilla and salt. Bake in an 8x8 pan for 20-25 minutes at 350°F. *NOTE- You can top the brownies with walnuts, raisins, chocolate chips, m&m's, mini marshmallows, etc. Whatever you have in hand. I used Twix on mine. Hope you like it.