In a large bowl, combine the sweet potato cubes with 1 tablespoon of olive oil, smoked paprika, garlic powder, onion powder, dried thyme, cumin, salt, and pepper. Toss until the sweet potatoes are well coated.
On a large sheet pan, spread the seasoned sweet potatoes in an even layer.
Pat the chicken thighs dry with paper towels. In a small bowl, mix the remaining tablespoon of olive oil with some salt, pepper, and additional spices (if desired). Rub this mixture all over the chicken thighs.
Place the chicken thighs skin-side up on the sheet pan, nestled between the sweet potatoes.
Roast in the preheated oven for about 35-40 minutes, or until the chicken skin is golden brown and the internal temperature reaches 165°F (74°C), and the sweet potatoes are tender.
If desired, broil for an additional 2-3 minutes to crisp up the chicken skin.
Once done, remove from the oven and let it rest for a few minutes before serving.
Garnish with fresh chopped parsley for a pop of color and flavor.
Notes
Serve straight from the sheet pan for a rustic look, or plate individually with parsley garnish.