Recipe note: Refrigerate perishable leftovers promptly in shallow containers; use within 3–4 days and reheat to 165°F. Count storage from the original cooking date when using leftovers.
Organize the thickener and egg before heating
This chicken soup has no noodles: creamed corn supplies body, with a separate cornstarch mixture and beaten egg added at different stages. Start with shredded cooked chicken. Cooking raw chicken is outside this method's starting point and should not be treated as part of its short simmer.
Mix the cornstarch with its cold water in a separate container before stirring it into the saucepan. Beat the egg and slice the spinach, keeping them ready separately. This lets you give the chicken reheating stage your attention before moving to the egg ribbons.
Keep the two temperature checks in order
The method checks the chicken shreds first, using the detailed thin-tip thermometer instructions and readings from different parts of the saucepan. Follow that check before pouring in the egg. A hot-looking broth does not replace checking the meat within it.
Pour the beaten egg slowly while stirring in one direction at a gentle simmer. Continue until the ribbons are set and complete the soup's stated temperature check, then add the white pepper and scallions. Ladle through the pot's solids as well as its liquid when filling the two dinner bowls. The sherry is part of the listed ingredients, so this recipe should not be described as alcohol-free.
Timing and servings are estimates. Equipment, ingredients and portion sizes affect the result. For chicken, use a food thermometer and the doneness check in the recipe.