Heat oil in a Dutch oven or large pot over medium-high heat. Once oil is fragrant, add diced onion and sauté 3-5 minutes until it's translucent and starting to become slightly golden brown.
1 tablespoon olive oil, 1 small onion
Add garlic, carrots, celery, and seasonings, and sauté another 2-3 minutes.
3 cloves garlic, 2 small carrots, 2 celery stalks, 1 tablespoon Italian seasoning, 1/2 teaspoon smoked paprika, 1/2 teaspoon salt, 1/2 teaspoon black pepper
Add a splash of broth to the pan, no more than 1/4 cup, and use a wooden spatula to deglaze the bottom of the pan. To do so, the liquid will loosen the browned bits on the bottom of the pan, that you can then scrape up with the wooden spoon. This adds a lot of flavor, don't skip this step!
4 cups chicken bone broth
Next, add chicken, potatoes, and the rest of the broth. Cover and simmer for 12-15 minutes, or until potatoes are fork-tender.
2 cups cooked chicken, 1 small Yukon gold potatoes, 4 cups chicken bone broth
Remove from heat and finish by squeezing the juice from half a lemon into the soup. Adjust salt and pepper to taste, if needed.
1/2 lemon
Serve, garnish with fresh parmesan and parsley (if desired), and enjoy!