It worries me that red velvet cake has enough food coloring in it to turn chocolate cake red. I didn't think colors worked that way. It's kind of like when I used to drink a glass of Hawaiian Punch and the corners of my upper lip would be dyed bright red. I would wash my face with soap and the color still wouldn't come off. It's a good thing that most of my insides are naturally colored some shade of red, because if they weren't before I'd drank that stuff they would be from now on.