A tutorial and demonstration on how to make fake blood. Things you'll need: 8 tbsp. corn syrup, 1 tsp. red dye, 1 1/2 drops blue dye, 1 tsp. cocoa powder, 1/4 tsp. corn starch. Combine all the ingredients in an empty container. Mix well until everything is well incorporated. Make necessary adjustments to the ingredients if needed. Follow these steps and You'll be able to make a fake blood.