White? Do you mean egg whites for a meringue icing? If so, you can't substitute for egg whites unless you have purchased powdered egg whites. Do you mean white as a color and flavor? Any color/flavor will do, depending on your taste.
Yes it can but people mainly use white icing
No
In cakes: if you want a buttercream frosting you usually end up with a pale yellow colour rather then white, there are white 'food dyes' you can add that will lighten the icing, they also use these when too much of a colour has been added, to lighten it back out. There are also recipes for making icing using coconut lard instead of butter, or just use icing sugar with a few teaspoons of boiling water! Hey presto! White icing! :) If you mean painting: you cannot mix any colours to make white, you can only use white.
No. Icing sugar is very finely ground, like a powder, so it dissolves in the butter and makes the frosting smooth. White sugar has little granules and if you use it in frosting your frosting will be grainy and crunchy.
by adding orange food coloring to white icing
Using white icing you will have to add blue food coloring to it.
white
Any raw egg white.
They had white icing on wedding cakes so I suppose so!
Yes, you can airbrush fuchsia color onto white icing. Airbrushing allows for even coverage and detailed designs, making it a great technique for adding vibrant colors. Just ensure that the icing is properly set and dry to avoid any smudging. Additionally, use food-safe airbrush colors for best results.
Contributors have said: Jeepers' required ingredients are white vanilla icing with a star candy and a sludge fudge. Plain cake with white icing and 4 star candies and 3 sludge fudges. add no mixture, put white large icing and 4 stars and 3 brownies 4 chocolate chips and 3 big chocolates big icing white
You would not add any color to black to make grey icing, and once enough black coloring is added to reach a truly black icing, the only way to lighten it to grey would be to mix a tiny bit of the black icing into a great deal of white icing. The proper way to make grey icing is to simply add a very few drops of black to white icing to obtain the desired shade of grey.