Begin by heating the olive oil in a large, heavy-bottomed pot over medium heat. Once the oil is shimmering, add the finely chopped onion and minced garlic. Sauté for about 4-5 minutes, or until the onion is translucent and fragrant.
Next, introduce the chunks of chicken to the pot. Brown the chicken on all sides, stirring occasionally, which should take about 5-7 minutes. This step enhances the flavor of your stew.
Once the chicken is browned, incorporate the sliced carrots and diced potatoes. Stir well and allow them to cook alongside the chicken for an additional 3 minutes, mixing the flavors.
Pour in the chicken broth and add the fresh thyme, bay leaf, and a generous pinch of salt and pepper. Increase the heat to bring the stew to a gentle boil.
Once boiling, reduce the heat to low. Cover the pot with a lid and let the stew simmer for 30 minutes, stirring occasionally to prevent sticking and ensure even cooking.
If you prefer a thicker stew, mix the cornstarch with a few tablespoons of cold water to form a smooth slurry. Stir this mixture into the simmering stew during the last 10 minutes of cooking to reach your desired consistency.
About 5 minutes before serving, add the frozen peas to the stew and stir gently until they are heated through.
Before serving, remove the bay leaf and taste the stew. Adjust seasoning by adding more salt and pepper if necessary.
Ladle the hearty chicken stew into bowls and garnish each serving with a sprinkle of freshly chopped parsley for a burst of color and flavor.
Notes
For a thicker stew, use cornstarch to adjust the consistency.