Season chicken thighs with paprika, salt, and pepper.
Heat olive oil in a large skillet and sear chicken on both sides until golden. Remove and set aside.
In the same skillet, sauté onion and garlic until softened.
Sprinkle in flour, stirring constantly, then slowly whisk in chicken broth and milk to form a smooth gravy.
Return chicken to the skillet, cover, and let simmer until the chicken is cooked through and tender.
Serve the chicken and gravy over warm cooked rice. Garnish with parsley.