Preheat oven to 350 degrees F (180 degrees C). Grease the pan
In a bowl, combine all the dry ingredients. All-purpose flour, cocoa powder, sugar, baking powder, baking soda and salt. Mix well using a whisk.Now add milk, oil, and vanilla essence.mix with hand mixer

Pour evenly into the pan
Bake for 25-30 minutes in a pre-heated oven or until a toothpick inserted in the brownies comes out clean.. Let it cool for 10 minutes, and then remove to a wire rack to cool completely
in pan preheat the pan 10 min on high flame put the pan in pateela for 30 min

Put walnuts
Spread chocolate sauce
And powder sugar..yummy cakey brownies ready