Arrowroot powder
You're in luck if you have arrowroot powder on hand since it may be used in place of eggs in any recipe that calls for another leavening agent. Arrowroot powder is used more for binding and moisture, ideally for baked goods that call for another leavening agent.
A South American tuber plant named arrowroot has a lot of starch. The plant's roots are used to extract the starch, which is then processed and sold as flour, starch, or powder. It is used in baking and cooking. It is available online and in a lot of health food stores. To substitute 1 egg, combine 2 tablespoons (or about 18 grams) of arrowroot powder with 3 tablespoons (or about 45 grams) of water.