Brush cookies with egg whites before baking?

I heard of many people brushing their cookies with egg whites or a mixture of egg whites and milk before baking. I'd like to know why? Will it make the cookies any better?Brush cookies with egg whites before baking?
If the cookie dough recipe already contains eggs (most do), the brush with egg whites is unnecessary. It can't hurt anything, but it won't improve the cookies much. However, egg (or milk, or even water) can be used as an adhesive: brush the almost-baked cookies, and add your decorations (sprinkles, M%26amp;M's, etc). The objects will be baked permanently onto the cookies.





In the case of an eggless dough or batter (like most breads, pie crusts, etc.), brushing with egg will add a nice shine to the finished product. Also, with breads, it will add an appealing, chewy texture to the crust.Brush cookies with egg whites before baking?
Sometimes people brush cookies or other desserts with an egg wash because they help make a golden shine on the finished desserts. It's also used to help stick sugar or sprinkles to the cookies so that it doesn't fall off when it's done baking.
no i wouldnt suggest doin that.. only maybe if its a sugar cookie but i still wouldnt.. most do that for make bisquits, scones rolls etc..
An egg wash is supposed to give it that golden shine color. It's done a lot on pastries, breads, rolls, certain cookies etc. I made rugelach cookies a few weeks ago and it called for an egg wash. Other cookies though I don't see it necessary; like chocolate chip cookies. Some people say it tastes different too but I really don't taste anything- maybe if you coat it on thick enough you'll get some cooked egg on top haha.
I use just milk, I don't think the egg white would make them any better.
It will give the cookies a more golden color.


It's just visually appealing.


For example, on meringue pies, egg whites are whipped until it becomes stiff and then its put on the pie. When the pie is done baking, the egg whites become a gorgeous golden color.
Some types you should, but not all because it will make them crispy.