<<Disclaimer:  Verify this information before applying it to your situation.>>

David Esterman asked about how to observe Passover on a celiac diet.
This should be the best holiday season of the year for all celiacs,
Jewish or not because breadand noodles are out.  However, matzo is often
substituted for flour in all kinds of products, so read labels carefully.
For example, matzo balls are definitely out.  (The mark of a great cook
is her matzo balls, so if I ever intentionally cheat on my diet, it's to
test out my matzo balls before serving once a year.)  Make sure that you
boil the matzo balls separately from the soup, and then you can have a
little chicken soup without worry, and everyone else can have their
sinkers.  I follow the Sephardic tradition and have rice and rice
products during Passover.  After all, you've got to eat something.

Matzo is unleavened bread, made from wheat.  The baked cracker-bread is
ground fine into matzo flour or ground coarsely into matzo meal and added
to commercial holiday products.  Watch out for commercial gefilte fish
which always has matzo products in it.  I make my own (thank you
Cuisinart).  Recipes for Passover baking can often be adapted for a
celiac diet because they use little or no matzo flour.  You can easily
use gluten-free flour in egg-white based cakes.  Also macaroons made with
egg whites and sugar have no fat, cholesterol or gluten except when you
add nuts or chocolate bits.  Macaroon recipes which do call for a little
flour or matzo flour work well with G-F flour.  Watch out for commercial
macaroons, some have added matzo flour.  Different traditions have
different rules.  So watch out what you eat at Uncle Maurie's, offer to
bring the gefilte fish, pass on the soup and have a great holiday.

For those of you who don't celebrate Passover, it may be worth your while
to stop by the Passover food section in the grocery store and see what's
there.  For example, Carmel potato pancake mix tastes better than
grandma's home made and has no flour.  I use it all year round.  Check
out holiday recipes in the newspapers around Passover as well, since many
recipes use no flour - perfect for a celiac diet any time.