4 egg yolks
2 egg whites
250 gr. sugar
250 gr. all purpose flour
300 ml of sprite / sierra mist
1. Beat the eggs and sugar on a high speed for 15 minutes ( yes , 15 minutes ) until it’s thick , fluffy and white
2. Add the flour and sprite alternately .
3. Pour into the mold all the way to the top .
4. Steam in a steamer for 20-25 minutes , on a high heat stove , make sure before you put them into the steamer , make sure steamer is hot and steaming well , wrap up the lid of the steamer with a kitchen towel to prevent the water dripping into the cakes .