In a large pot, heat extra virgin olive oil over medium heat. Add the chopped onion, season with salt, and sauté for about 2-3 minutes.
Add chopped carrot and celery and sauté for about 4-5 minutes until the vegetables are softened.
Add the minced garlic and pepper. Cook for an additional 1-2 minutes until fragrant.
Pour in the chicken broth and add the bay leaves and chicken breasts. Bring the mixture to a boil, then reduce the heat to a simmer. Let it cook for about 15 minutes, allowing the flavors to meld together.
Remove the chicken from the pot and shred the cooked chicken breasts into bite-sized pieces using two forks.
Add the orzo pasta to the simmering soup and cook for 6-8 minutes or until tender. Stir occasionally to prevent the orzo from sticking to the bottom of the pot.
While the orzo is cooking, whisk together the egg yolks and lemon juice in a small bowl, until smooth and creamy.
Slowly ladle a few spoonfuls of the hot broth from the soup into the egg-lemon mixture, whisking constantly to prevent the eggs from curdling. Do this until the egg mixture is warmed up.
Add the shredded chicken back into the soup and stir to combine.
Slowly pour the egg-lemon mixture back into the soup while stirring continuously. Continue to cook the soup on low heat for another 2 minutes, allowing it to thicken slightly. Be careful not to bring it to a boil after adding the egg mixture, as it can cause the eggs to scramble.
Remove the bay leaves, taste and adjust the seasoning with more salt, pepper, or lemon juice if needed.
Stir in the fresh dill.
Serve hot with your favorite bread. Enjoy!
Notes
Control the Heat When Adding Eggs: Add the egg-lemon mix on low heat to keep the soup creamy without curdling the eggs.Use Quality Chicken Broth: A rich, homemade, or high-quality store-bought broth adds depth to the soup. For homemade, throw in aromatics like onion, garlic, and bay leaves for extra flavor.Add Orzo Carefully: Orzo cooks fast! Add it after the chicken is done, stirring occasionally so it doesn’t stick.Adjust Lemon and Salt to Taste: Avgolemono is loved for its lemony brightness, so adjust lemon juice and salt at the end to find your perfect balance.Add Fresh Herbs for Flavor: A sprinkle of fresh dill at the end brings a bright, herbaceous kick that pairs well with the lemon.Thicken to Your Liking: For a thicker soup, use a bit less broth or simmer longer after adding the egg-lemon mix. For a thinner soup, add extra broth.Serve Right Away: It’s best served fresh so the orzo doesn’t absorb too much broth. If making ahead, cook the orzo separately and add it before serving.Storage and Reheating: Gently reheat leftovers on low, adding a splash of water or broth if needed. Avoid boiling to keep the egg mixture smooth.