Eggs flare up my daughter's Eosinophilic Esophagitus.
I feel that baking without eggs + gluten free has been a huge challenge. I highly suggest Cybele Pascal's Allergen Free Baker's Handbook.
chemical reaction vinegar and baking soda
Ener-G egg replacer
some baby food puree (some just don't do it for me, yuck)
flax and warm water
The list is quite long and it really depends on what type of thing you are making and how well the replacement flavor blends into the recipe and the resulting texture. Just know it can be done and done well, that cookbook is great!
Thanks for the recommendation of Cybele Pascal's baking book. I have been gluten-free for 2 years and recently found out I also react to Dairy/Soy and Egg. To make it even more difficult my 13 year old is Gluten/Dairy/Soy & Egg and my 10 year old Soy and Egg! Aaaaaagh! I live on a small island in the Caribbean and have very limited access to any kind of health food store so the challenges are beyond ridiculous. Have downloaded this book to my iPad and look forward to trying out some of the recipes. Thanks again.