Look, the entire history of baking is just humans trying to make soft things out of hard flour. You have permission to cheat. The invention of cake flour in the 1930s was a marketing gimmick that worked brilliantly—and now you’ve reverse-engineered it with a box of cornstarch from 2019. You are a culinary outlaw.
Go forth. Bake that cake. Eat it with your hands at 2 a.m. The flour police are not coming for you. And if they do? Tell them I sent you, and that I said sifting three times is the secret to both good cake and a good alibi.