Melt chocolate and butter in a micowave.
Seive the flour
Beat the eggs and powder sugar till it gets yellow colour.
Add chocolate and butter mixture in eggs mixture.just mix it don't over mix.
Add maida and vanilla essence.and beat the mixture.(lightly) add walnuts.
Pour the mixture into baking pan lined with parchment paper.
Bake at 180° preheated oven for 25 minutes.
