This Zucchini-Potato Soup is surprisingly flavorful and a big hit even with those who aren’t normally fond of soups. Be sure to follow the directions carefully when adding the eggs and lemon juice; otherwise the mixture is likely to curdle.
In a large saucepan, bring the broth to a boil. Add the zucchini, potato, and onion. Reduce the heat and simmer, covered, for 15 minutes.
In a small bowl, beat the eggs. Add the lemon juice and 1/2 cup of the broth. Stir into the soup. Increase the heat to medium and heat for 1 minute, stirring constantly; do not boil. Season to taste with salt and pepper and serve immediately.