Season chicken thighs evenly with salt, pepper, garlic powder, and onion powder.
Heat vegetable oil in a large skillet over medium-high heat.
Place chicken in the skillet and sear for 6 minutes per side until golden brown and internal temperature reaches 165 degrees Fahrenheit.
Remove chicken from the skillet and set aside on a plate.
Lower heat to medium and whisk condensed mushroom soup and chicken broth into the skillet, scraping the bottom to deglaze.
Stir in the sour cream and simmer for 3 minutes until the sauce is smooth and thickened.
Return the chicken to the skillet and spoon the sauce over the meat to coat.
Serve the smothered chicken over portions of cooked white rice and garnish with dried parsley.