Definition of «egg sub»

"Egg sub" is short for "egg substitute." It refers to a product that can be used as a replacement for eggs in cooking or baking.

I also am curious about egg sub or if it would work left out. (alldayidreamaboutfood.com)
I think some readers have used other egg subs, but can not recall the details at this moment. (freerangecookies.com)
Thank you for sharing your adaptations, and let me know how you like it with the vegan egg sub, too! (godairyfree.org)
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