Sieve flour cocoa Powder and baking powder together.

Beat butter and powerd sugar till creamy.

Beat egg with vanilla essence till bhi frothy.

Add this egg mixture gradually with butter & sugar mixture.

Now add maida and cocoa Powder in the mixture.

Using a wooden spoon fold maida gradually with an upward and downward motion.

Transfer this mixture into paper glass equally.

Microwave the cake for 4 minutes in full power.

Check the cake by inserting a toothpick or knife

If the knife comes out clean..the cake is ready.