Great question — answering as the UphillTech team:
Yes, there are multiple substitutes. I can't explain it myself any better than here , but I have tried to summarize it: The best substitute for egg in a dish depends on the dish itself (because the function of the egg isn't the same in every dish). As a general rule, the fewer eggs a recipe calls for, the easier they will be to substitute. Also consider how the substitute will affect the overall taste of the finished dish. Possible substitutes: Bananas and/or apple sauce (not flavourless, baked goods such as muffins, pancakes or yeast-free quick breads, especially banana bread; if you want something fluffy, make sure to add a bit of baking powder) (Silken) Tofu (flavourless, best*...
Full answer by Mien: https://cooking.stackexchange.com/a/14027 (CC BY-SA 3.0).
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