Halloween “blood”

Halloween berry recipe The internet is full of recipes for edible fake blood for Halloween.  Here is an example.  Fake blood  Most involve some type of thickener like corn starch, a dye – like berry juice, berry jam, or food coloring.  Some use blackberries and some use strawberries.  It does seem like most red berries might not be dark enough on their own.  A mix with a small amount of blueberry juice, may just work.  The end result can be used as blood for costumes and decorations for cake.