Step 1: Season and Sear the Chicken

1. Pat the chicken breasts dry with a paper towel. This helps achieve a better sear.
2. In a small bowl, mix the garlic powder, onion powder, smoked paprika, salt, and black pepper.
3. Rub the seasoning blend evenly over both sides of the chicken breasts.
4. Heat 2 tablespoons of olive oil in a large skillet over medium-high heat.
5. Once the oil is hot, place the chicken breasts in the skillet. Cook for about 4-5 minutes on each side until they develop a golden-brown crust.
6. Remove the chicken from the skillet and set aside.

Step 2: Cook the Rice

1. In a medium saucepan, bring 2 cups of chicken broth and ½ teaspoon of salt to a boil.
2. Stir in the long-grain white rice.
3. Reduce the heat to low, cover the pot, and let it simmer for 15-18 minutes.
4. Once all the liquid is absorbed, turn off the heat and let the rice sit, covered, for another 5 minutes.
5. Fluff the rice with a fork before serving.

Step 3: Prepare the Creamy Cheese Sauce

1. In the same skillet used for the chicken, melt 2 tablespoons of unsalted butter over medium heat.
2. Once melted, whisk in 2 tablespoons of all-purpose flour. Cook for 1-2 minutes, stirring constantly, until the mixture turns a light golden color.
3. Slowly pour in the whole milk and chicken broth while whisking continuously to prevent lumps.
4. Add the garlic powder and dried thyme, stirring well to combine.
5. Let the sauce cook for about 3-4 minutes, stirring occasionally, until it thickens.
6. Stir in the shredded cheddar cheese and grated Parmesan cheese. Mix until the cheese is fully melted and the sauce is smooth.

Step 4: Smother the Chicken and Finish Cooking

1. Return the seared chicken breasts to the skillet, nestling them into the creamy sauce.
2. Spoon the sauce over the chicken, ensuring it is well-coated.
3. Cover the skillet with a lid and let the chicken simmer over low heat for 10 minutes.
4. Check for doneness by slicing into the thickest part of the chicken. The internal temperature should reach 165°F (75°C).
5. Once fully cooked, remove from heat.

Step 5: Serve and Garnish

1. Spoon the cooked rice onto plates or a serving dish.
2. Place a chicken breast on top of each serving of rice.
3. Drizzle with extra sauce and sprinkle with freshly chopped parsley.
4. Serve immediately while warm.