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How to Make Fake Blood for Halloween

It's cheaper and more fun to whip up some fake blood in your kitchen laboratory with ingredients you have in your pantry.

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Close up image of frightening woman in halloween costume looking at the camera with open mouth over white background

Why Make Fake Blood

You can buy fake blood at just about any big box retailer or one of the seasonal Halloween pop-up stores. But why buy something you can easily make at home? Like your Halloween yard decorations, it’s a fun way to get into the holiday spirit, while saving a little money too.

fake blood 20Drobot/Shutterstock

Fake Blood for Skin

Fake blood is a great addition for creative, scary Halloween creations, but any of it that comes in contact with your skin or mouth needs to nontoxic and safe. Also, this type of blood needs to be slightly runny. After all, fresh blood is the best for dripping and splattering! Assemble these ingredients:

  • 3/4 cup corn syrup;
  • 1/4 cup water;
  • 1/2 teaspoon red food coloring;
  • Five drops blue food coloring;
  • Two drops green food coloring;
  • One tablespoon cornstarch.

Combine the water and corn syrup. The corn syrup will make the blood a bit viscous — you want it runny, but not too runny. Add the food coloring. (Using green and blue makes the color more realistic.) Finally, mix in the cornstarch. This will thicken the mixture a bit more. Let is sit at room temperature for ten minutes before use. Note: This will stain skin and clothing.

Bloody Halloween composition: high angle view of ceramic crockery in blood placed on dirty gauze, witch finger cookies in bloody cup

Fake Blood for Clothes

For clothes, you will need to make the blood a bit thicker and darker. This recipe is non-toxic and also made with edible ingredients. Ideally, you’d want to make a bigger batch of this fake blood so you can thoroughly soak your costume. This recipe uses “parts” versus exact measurements for the corn syrup and water. That way, you can make as little or as much as you like:

Mix three parts corn syrup thoroughly with one part water in a large bowl. Add a couple of drops of red food coloring into the mixture while stirring continuously. Keep adding more drops of food coloring until the blood is the desired color. Stir for at least five minutes to distribute the food coloring evenly.

Add three tablespoons of cocoa powder to the mixture and stir. This thickens the blood. Keep adding the cocoa powder, a tablespoon at a time, until it reaches the consistency you desire. The blood will be thick but not lumpy, so it can sit on your clothing and absorb without running. Plus, these tips will help you make your house extra fun and spooky this year.

Wall from a haunted house built for Halloween. Sculpture was made by me so I hold any copyrights.

Fake Blood for Halloween Decorations

A batch of fake blood and guts is perfect for a haunted house or other Halloween decorations.

To make the guts, you need:

  • Two tablespoons cornstarch;
  • Four teaspoons water;
  • Two to five drops red food coloring;
  • 1/2 teaspoon cocoa powder.

Mix together the cornstarch, food coloring and water in a bowl. Mix until you have a smooth consistency. Then, mix in the cocoa powder — small clumps are okay, it will look like blood clots. Use your fingers to press the mixture against the side of the bowl to form organ shapes. You may wish to mix in a little more cornstarch or cocoa mix to firm up or darken your organs.

For the blood:

  • 2/3 cup chocolate syrup;
  • 1/3 cup laundry detergent;
  • Four to six teaspoons red food coloring;
  • This blood is not edible and should not come into direct contact with your skin.

Combine the chocolate syrup, laundry detergent and food coloring. Mix until it’s a smooth consistency. Arrange the guts into whatever shape you desire. Cover the flesh and organs with the fake blood. If you want the blood to be a bit runnier, thin it out with water and a few drops of red food coloring.

Reader's Digest
Originally Published on Reader's Digest

Debbie Wolfe
I'm a content creator with an expertise in SEO, buying guides, lifestyle topics including home, garden, DIY, food, and e-commerce. I write for large and small businesses. Some of my current and past clients include Home Depot, Walmart, HGTV and DIYNetwork.