Preheat oven to 180 degrees Celsius.

Place eggs and sugar in the bowl of an electric mixer and beat for 8-10 minutes or until very pale and thick.

Sift flour and baking powder over the mixture and continue to beat at low speed until smooth.

Mix in butter, vanilla and beat until combined.

Grease madeleine pan/pans and spoon in the mixture.

Bake for about 10 mins or till golden.