Bloody Cupcakes

I made these for Halloween a couple of years ago and I'm not sure what recipe I used for the blood, but they  were pretty cool!  Here is a recipe I found that sounds like the one I used or pretty close.  I used the liquid food coloring in the little plastic bottle that comes in a four pack.  I would really recommend using the gel food coloring instead so it's not as runny.    I made the cupcakes out of a red velvet cake mix for the full effect.