*To add half of an egg, just beat an egg and use half of it, about 1-1/2 to 2 tablespoons, depending upon the brand of the egg. **You may substitute 2 tablespoons of fruit juice such as pineapple, orange, or tangerine, but you will need to make more slurry. Just combine another teaspoon of cornstarch with about 1 teaspoon of juice or water and add to the boiling mixture. Stir until thick.
https://glutenfreerecipebox.com/crispy-gluten-free-tangerine-chicken/