Here's The Real Flavor Of Red Velvet - Tasting Table
Briefly

The classic red velvet cake differentiates itself with a unique blend of cocoa powder, vanilla, and an acid source that creates its distinct tangy flavor.
The inclusion of buttermilk or vinegar adds a tangy aftertaste to red velvet cake, enhancing its flavors and contributing to its signature rich texture.
Unlike standard chocolate cake, red velvet uses significantly less cocoa, resulting in a milder taste and making acid a key ingredient for its red hue.
The term 'red velvet' refers not just to the color but also to the dessert's velvety texture that has gained popularity for its distinct experience.
Read at Tasting Table
[
|
]