Anyone know if yolkoline has a flavoring with it? Is it just an egg yolk shade dye? Is it better than others? I ask because a friend that was over today said it was the colorant used...he "read it on the internet somewhere..."
I've been unable to find any detailed info on Yolkoline other than it's availability through foodservice supply houses.
I did locate the ingredient info for McCormick's Egg Shade, which I think would be comparable:
WATER, PROPYLENE GLYCOL, FD&C YELLOW 5, PROPYLPARABEN (AS A PRESERVATIVE), AND FD&C RED 40.
McCormick claims their food dyes don't have any flavor to them; maybe the antifreeze (propylene glycol) could impart some flavor, but since you're using such a tiny amount of dye in your dough, it likely doesn't have much effect.
Color can sometimes cause psychological effects that make you think something tastes different though.
Did you know that every color of Froot Loops is the same flavor? (that flavor, of course, is "Froot")