The key to a good vanilla anything (be it cake, ice cream, or, as is the case here, frosting) is getting the vanilla notes just right: present, but neither overpowering nor overpo ...

Imagine the fudgiest brownie layers combined with rich, creamy fudge frosting—every bite melts in your mouth. Perfect for chocoholics and special occasions, this cake is nothing short of decadent.

To easily compare the results of the different egg substitutes, I used the same brownie mix for each batch: the Betty Crocker's Fudge mix. For this test, I used Betty Crocker's Fudge brownie mix.