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How to make your own fake blood

Heather Barnett is a freelance writer and foodie whose work has been featured in blogs, websites, magazines, and TV and radio ads. She spends her free time relaxing with her soulmate, Keith; her dog, Mosby "The Fly Slayer;" and Felix th...

Hollywood-style fake blood

If you're looking for that authentic zombie or vampire effect, you're probably not happy with the bright-red sticky stuff you buy in the costume aisle. Make it yourself at home just like the Hollywood pros do with these simple and easy instructions.

Hollywood-style fake blood

Making Hollywood-style fake blood is easier than you think, and it can be done with ingredients you probably already have around the house. If you've got flour, food coloring and some corn syrup, you're about 10 minutes away from homemade ghoulish fun — for Halloween or just for fun!

Hollywood-style fake blood recipe

Yields about 2 tablespoons

What you'll need:

  • 1/2 teaspoon red food coloring
  • 1 tiny drop blue food coloring
  • 1 tiny drop green food coloring (optional)
  • 1 scant teaspoon flour, sifted
  • 1 tablespoon corn syrup
  • 1 small shallow glass or plastic bowl
  • 1 toothpick
  • Cooking spray
  • Water (optional)
  • Chocolate sauce (optional)
  • Liquid laundry soap (optional) 


  1. Add flour and red food coloring to the mixing bowl.
  2. Spritz your tablespoon with cooking spray and use it to add corn syrup to the mix.
  3. Use the toothpick to add the tiniest drop of blue food coloring. You can always add more. Add the same amount of green food coloring if you need it to be more purple. Stir with a small whisk or spoon until well blended (and not lumpy).
  4. Adjust the recipe using additional food coloring, chocolate sauce, water or laundry detergent (see below) as needed.

Hollywood-style fake blood

It's obvious why you need the syrup and red food coloring, but using those ingredients alone will produce the same fake-looking goop you buy in the Halloween aisle. To properly adjust your mix, it's important to understand the effects the other ingredients have on your fake blood so you know how to adjust the recipe to your unique needs. For the best results, try making some ahead of time so you can experiment.

Hollywood-style fake blood

Cooking spray

The cooking spray simply acts to prevent the corn syrup from sticking to the tablespoon. The fat prevents the syrup from adhering to the plastic or metal surface. In a pinch, you could also use butter, shortening or even regular cooking oil. Just make sure it's a light coating so you don't add too much oil to the mix.

Blue and green food coloring

The blue and green food coloring help darken the red so it doesn't have that bright, fake look. If your blood is too bright, you can add more. Start with just the blue and add green, as well, if you need a more "purple" look.

You want lighter blood for "fresh wounds" and darker blood for those that would have been there longer. Just add the blue or green food coloring, one very tiny drop at a time (a little goes a long way... it's just an accent color). Remember, arterial blood is bright red and veinous blood is dark (almost maroon).


Flour is a thickener. Don't use extra corn syrup to thicken, as it gives the blood a strange, almost sticky (syrupy) look. If you don't have flour, you can add a bit of cornstarch, as well, but use less. (You can also use chocolate sauce; see below.) 

Glass or plastic bowl

Be careful what container you use for the mix. Red food coloring stains, especially if it's left in the container for too long. Use one you don't care about. If you tend to like creepier costumes, just mark it "fake blood" and tuck it away with your Halloween decorations.

Water & chocolate sauce

Water and chocolate sauce can be used to adjust the thickness of the blood. Water will thin it, while the chocolate will thicken. Only use the chocolate if your blood can stand to be a bit darker. Otherwise, stick with flour or cornstarch.

Liquid laundry detergent

Adding laundry detergent to the mix is said to make it easier to get it out of clothing. But beware. It may not work on all clothes. Also, you shouldn't use it for blood that's going to be on kids or blood that goes too near your mouth or fingers, as you're likely to ingest some (and even if it's not poisonous in small amounts, it tastes revolting!). Skip this step if you need to keep it fully edible.

Hollywood-style fake blood

More Halloween costume ideas

How to make a Fruit of the Loom Halloween costume
How to make a broken iPhone costume
Top 10 Halloween costumes of all time

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