1)My microwave has a high power of 800 watts, if i t is more adjust the time accordingly.
2)Add some white chocolate chips for making this as triple chocolate brownie.
3)Dont over bake the brownie, else it will get dry.
4)Use good quality chocolate and cocoa powder.
5)Serve this warm with cold vanilla icecream and chocolate sauce for best taste.
6)You can use the same bowl which you use to mix the batter for baking.