Orange Sponge Cake

This weekend, I baked a quick Orange cake. It is quite simple and healthy as it did not have any oil and butter!
Recipe:

2Eggs
1Cup of Flour and 1 tspn baking powder sifted
1/4 cup of powdered sugar
1 tbspn of Orange Zest
Juice from one orange juice.

Preheat oven at 180C. Line a baking tray with baking sheet. Separate the egg yolks and white. Beat the egg white till fluffy and holds stiff peaks. Mix together the egg yolk, orange juice and slowly incorporate the dry ingredients (sugar and flour). Fold in the Egg white slowly till it is well incorporated into the batter. The batter should be of the right consistency. If it is too stiff, add some warm water.

Pour it in the baking tray and bake for atleast 30 minutes. Tooth pick inserted in the center should come clean.