Basic sponge cake

Ingredients:
All purpose flour(Maida):1cup
Powdered sugar:1cup
Baking powder:1tbsp
Butter:1/2 cup
Vanilla eseense:1tsp
Eggs:2

Procedure:

1. First beat eggs in a seperate bowl for 2mins.
2. Sieve maida and baking powder in a bowl.
3. In a bowl beat butter, sugar,vanilla essense.
4. Now add the eggs mixture into this and keep beating.
5. Add maida and baking powder mixture to the above content and continue beating for 15-20mins.
6. Apply Butter to a 8*8 cake pan and pour the mixture into this.
7. Preheat oven to 350 and bake cake at same temperature for 25-30mins or till completely baked.