This comforting pastina chicken soup is made with tiny gluten-free star-shaped pasta, shredded chicken breast, veggies, and egg to thicken the broth perfectly!
Using a large dutch oven or stock pot, heat the avocado oil over medium heat.
Once the oil is shimmering, add the onion. Saute for 3-4 minutes or until lightly translucent. Add the garlic, carrots, and celery and saute for another 3-4 minutes or until lightly fork tender and fragrant.
Pour in the chicken broth, lemon juice and salt and pepper. Using butcher's twine, bundle the herbs together with the Parmesan rind (if using) and add it to the broth.
Allow the soup to simmer for 20 minutes. Remove the herb bundle before bringing it to a boil and adding the pasta. Reduce to a medum simmer, stirring the broth often.
Add the egg yolks in a bowl. Once the pasta is al dente, spoon out a ladle of the hot broth, and slowly stream it into the egg yolks, while constantly whisking to temper the eggs.
Turn off the heat and pour in the egg yolk mixture and cooked chicken into the soup. Stir to combine.
Serve the soup topped with fresh thyme and parsmesan or pecorino if desired.
Notes
The egg yolks help to add richness to the broth as well as thicken the soup. Tempering the eggs is crucial to ensure they don't scramble. You can leave the egg out of the soup if desired, but keep in mind that it will lead to a thinner broth. The fresh herb bundle adds flavor to the broth. You can also use dried herbs if needed. For the chicken, you can use pre-cooked chicken, rotisserie chicken, or even cook the chicken in the broth. Keep in mind you will have to cook the chicken through to 165°F for food safety.