Beat eggs and sugar along with vanilla essence,melt chocolate and butter,in microwave for 30 seconds or more keep checking after 10 second,add roasted and chopped nuts,to the melted chocolate.

Take maida, salt mix well,add egg and chocolate mix,add chopped chocolate pieces, pour in a greased microwave safe dish and cook for 3 to 5 min depending on the microwave power,, check by putting a knife,if it comes clean, brownie is done.