It is ofcourse compulsory, when sewing something white and crisp, which must be spotless like a wedding cake, to happen upon an extra sharp pin when sewing the pocket, causing a bright red blood spot on your pure white cakemakers apron.What do you do when you have no time or material to make a new one?
You just spit on it. And then get some (white) kitchen towel, and blot.
Spit and blot
Until the blood goes away.
It only works with your own spit
Just like only your own wee works as an antidote to non fatal jelly fish stings.