Hi -

We;ve used Duncan Hines brand (classic chocolate and white frostings in a can)
successfully.  However, my husband does NOT have a hair-trigger allergy, and
I'm pretty sure that both frostings are run on a dairy line.

Beth Kidder's cookbook (The Milk Free Kitchen) has a couple of frosting
recipes that look pretty good.  Her cookbook is generally reliable.  But
I usually go the easy way and buy a can of the stuff.

Frosting tip from the cake decorating class I took:  Too keep crumbs from
getting all over the cake, put a big dollop of frosting on the cake and
spread from the center of the dollop to the edges.  Now put another dollop
of frosting **on the existing, spread frosting.**  Spread from the already-
frosted part towards the unfrosted part.  This way your spreader doesn't pick
up crumbs.  You can even frost sliced-off bits of cake successfully this way.

--Beth Kevles
  [log in to unmask]
  http://web.mit.edu/kevles/www/nomilk.html -- a page for the milk-allergic
  Disclaimer:  Nothing in this message should be construed as medical
  advice.  Please consult with your own medical practicioner.