Creating blood

As blood features in my short film i need to create it. I have looked up many ways just by looking in WikiHow. I believe my favourite of all 14 ways featured in the link is number 3 "Chocolate Blood".

As i have not yet attempted to create this blood i am slightly worried it could be the wrong colour or consistency. Although this method look fairly simple and easy.

1. 
   1
   You will need:
   • Corn syrup (or golden syrup)
   • Red food coloring or cherry Kool Aid powder
   • Powdered chocolate
   • Flour or corn starch (optional).
2. 
   2
   Make the basic mix. Combine light corn syrup with red food dye until you get a shade that closely resembles real blood. You can also use cherry Kool Aid powder instead of red food dye for a yummy chocolate cherry flavor.
3. 
   3
   Add chocolate. Add a small amount of cocoa powder to the syrup mixture to darken the shade and turn the fake blood opaque, just like real blood.
4. 
   4
   Perfect the consistency. Either thin the blood by slowly adding water, or thicken it with a couple pinches of flour or cornstarch whisked in gently.
5. Here's even a video on how to create it sourced by HowCast. It is a slightly altered version of the one above and not very serious but it helps get the general feel of how to make the fake blood as i am more of a visual learner rather than a learner through reading. 
6. 
   View How to Make Fake Blood on Howcast