AIt looks like there is red fondant underneath the white fondant. The pooling and dripping blood just looks like food coloring.
AOr maybe the red is food coloring painted on with a brush.
Thank you everybody for your suggestions :)
I just saw an email with a recipe, I deleted it.. shoot!...but it was either craftsy or here, on cake blood. It was corn syryp, a cup, I think, with red gel color and a tablespoon of chocolate syrup. It suggested adding a lttle blue color if the blood was still pinkinsh.
There's a recipe for it when you first sign into CC.
Thank you for your help :)