In a large bowl beat eggs until fluffy and add powdered sugar and mix well.
Add milk slowly by 3 addition.
Add vanilla essence.
crush unibic cashew nut cookies and mix it with flour.
Now add this mixture with a spoon and fold it completely by 3 additions.
The batter should be not too thick but in the pouring consistency.
Grease the cake tin with oil and flour.
bake it for 40-45 minutes in the pre-heated oven