Edible non-cook Fake Blood

Step 1: Ingredients
You will need:

Food Coloring : Red and Blue
LIGHT Karo (or other brand) corn syrup
flour
mixing bowl
*optional measuring cup and spoons

Step 2: Coloring
I started with 20mL of corn syrup because the red food coloring does NOT go far . I don't need tons, I just need it for some knocked out teeth in an upcoming short. This guide is therefor based on 20mL (less than 1/8cup) of corn syrup.

You will need to drop in 50, yes fifty, drops of red. It takes a lot to lose the clear brightness of the food coloring. The blue is the special ingredient (thanks Lloyd). But be careful. Use only 1 or 2 drops of blue. It turns burgundy-blueberry pie filling looking quick and then you have to start over. So:

1 or 2 drops of Blue per 50 drops of Red.

Step 3: Adding Flour
The flour will really help the blood lose its transparency. Add it slow because it gums up and you'll have to add more corn syrup and food coloring if you add too much.

I started with 1/2 tsp of flour, mixed it in and sprinkled more in until it was no longer clear but still syrupy.

Step 4: Mix and Go!
Mix it up and pour it into an airtight container and its ready to take on location!


Source: http://www.instructables.com/id/No-Cook-Edible-Fake-Blood-for-mouth-wounds,-etc./