In a bowl,combine melted butter and both sugars

Add in eggs,vanilla flavor and whisk for about 1mins until evenly combined and light in color

Over the same bowl add sifted cocoa powder,flour and salt,fold in gently until well combined

Add the chocolate chips and fold again

Transfer the batter to a greased pan and bake in a preheated oven at 350F(175c) for 25-30mins

Let it cool down,then cut your brownies and enjoy with some melted chocolate on top