If you use medium sized eggs, lower the flour to 90g.
Sift the flour and set aside. Separate the egg whites and yolks. Cold milk is OK. Preheat the oven to 170°C.
Add half of the granulated sugar to the egg yolks. Beat until it becomes whiter and then add the milk and vegetable oil.
Add the vanilla beans (Cut an opening vertically with a knife and with a fork, scrape out the beans) to the mixture from Step 2 and mix together.
Sift the sifted flour from Step 1 into the bowl and mix together very very well, being sure not to form clumps.
Add the remaining granulated sugar little by little to the bowl with the egg whites. Beat together until a sturdy meringue is formed.
Add 1/3 of the meringue from Step 5 into the mixture from Step 4 and gently mix. Add another half of the meringue and mix together.
Next, reverse and add the batter mixture into the remaining meringue. Scoop the batter gently from the bottom and mix in a cutting motion, being careful not to break the foam.
Pour it into the chiffon mold. Hold the center cylinder and bang the entire mold to get rid of air bubbles.
Set the oven for 30 minutes. First bake for 20 minutes at 170°C. Midway through the baking, cut 4 ~5 notches in the cake (you don't have to do this).
Then lower the heat to 160°C and continue baking (you can also leave it at 170°C). Halfway through this baking time, stick a skewer into the cake and if it comes out clean then the cake is ready.
When it's out of the oven, place it upside down, still in the mold, onto a cup. If you try to take it out while it's still warm, it will fall apart.
Once the cake has cooled, use a palette knife to remove the cake from the mold. Use a bamboo skewer to separate around the center cylinder.
Flip it upside down onto a plate, arrange it nicely, and it's finished. It has such a beautiful height.
Story Behind this Recipe
Standard Chiffon cake. Vanilla beans and milk are necessary.
If you whip the egg whites first, they can wait in the refrigerator. If the milk is warm, the cake will expand too much, so cold milk is good. Adding vanilla beans and milk together increases the deliciousness and the aroma. You absolutely must put them in.