In a bowl beat together 3 eggs and 150 gm sugar.
Then add 20 gm cocoa powder and 150 gm melted cooking chocolate.
Also add 150 gm sieved flour, 100 gm white butter, 1 tsp baking powder and a few drops of vanilla essence.
Lastly fold in 50 gm chopped walnut.
Spread mixture in a greased & lined cake mold.
Now bake in a preheated oven on 180 degrees for 30 – 35 minutes.