I made cupcakes for a family party last weekend. I decided to do cake mix- DH has red velvet!! I had to try it. I used the following substitutions and followed the mixing/baking directions on the box:
1 c whole milk
1/2 c sour cream
1/4 c oil
4 eggs
I topped them with a swirl of Swiss Meringue Cream Cheese Buttercream, and a fondant flower. They were pretty yummy.