Pat chicken dry and season with salt, pepper, garlic powder, onion powder, and paprika. Heat olive oil in a large skillet or Dutch oven over medium-high heat. Sear chicken 3–4 minutes per side until golden. Remove and set aside.
In the same skillet, add butter and diced onions. Sauté until soft (about 3 minutes). Add garlic and cook 30 seconds more. Sprinkle flour over the onions and stir to form a roux. Slowly whisk in chicken broth and heavy cream. Add thyme, parmesan (if using), salt, and pepper. Simmer 5–7 minutes until thickened.
In a separate pot, combine rice, water or broth, and butter. Bring to a boil, reduce heat to low, cover, and simmer for 18–20 minutes. Fluff and set aside.
Nestle the seared chicken into the creamy sauce. Reduce heat to low, cover, and simmer for 20 minutes until chicken is cooked through and tender.
Spoon rice onto plates or bowls. Ladle creamy chicken and sauce on top. Garnish with parsley or fresh chives.
Notes
This dish is great for meal prep and gets even better the next day. Try adding peas, spinach, or mushrooms for extra nutrition.