In a bowl, stir egg yolks, sugar and salt together with a hand whisk till sugar dissolved and combined.
Add in corn oil and fresh milk, stir well again.
Combine cake flour and black sesame powder together and fold well into egg yolk mixture, set aside.
In a clean mixing bowl, whisk egg white and corn flour till foamy at low speed. Then gradually pour in sugar and continue to whisk at medium high speed till peaks form.
Gently fold meringue to egg yolk batter in 3 batches till combined with a rubber spatula.
Pour batter into a 23cm ungreased chiffon tube pan and bake in preheated oven at 160 deg C for about 50 - 60 minutes.
Invert cake pan immediately from oven and leave cake to cool completely before unmoulding.
Recipe by Anncoo Journal at https://www.anncoojournal.com/black-sesame-chiffon-cake_17/