I was looking at the Brite White Buttercream Recipe that calls for High Ratio Shortening and I only have Crisco. Can I use it? Also, what is bright white? I asked someone at the cake store yesterday and they sold me a tiny bottle of liquid that she said would make my icing whiter - is that the right stuff?

One more thing, why is 6X powder sugar so important because mine is 10X??

Thanks.

Crisco is to hi-ratio what milk is to heavy cream.
Sure, you can substitute one for the other, but it's not the same thing.

Brite White is an icing base not a white dye. There are also other icing bases... Angel White, Snow White and others.

Angel White icing base:

http://www.thebakerskitchen.net/index.asp?PageAction=VIEWPROD&ProdID=1941

Other icing bases:

http://www.cakecentral.com/cake-decorating-ftopicp-6184394.html

Wilton White White icing dye:
(NOT WHAT YOU WANT.)

http://www.wilton.com/store/site/product.cfm?id=3E30B53A-475A-BAC0-5FBDEF5E8A8FCFF2&fid=0EC60A47-475A-BAC0-54338024A0B6A5A5

6x powdered sugar is not sold in most supermarkets (although Gordon Food Service carries it).

6x vs. 10x powdered sugar:

http://www.cakecentral.com/cake-decorating-ftopict-23010-.html

Hi-ratio b/c recipes:

http://www.cakecentral.com/cake-decorating-ftopict-6148181-.html

Sugarshack's b/c with Crisco:

http://www.cakecentral.com/cake-decorating-ftopict-612448-.html

HTH