<p>Egg whites are separated from egg yolks.</p> <p>Stir the egg yolk.</p> <p>Cover the egg yolk with plastic wrap.</p> <p>Whisk egg white.</p><p><br></p> <p>Steamed zhe cake.</p> <p>The cake is steamed.</p> <p>Open the plastic wrap. </p> <p>Perfect cake! ！ ！ </p>