In a small bowl, mix together 1 tablespoon of the olive oil, chipotles, garlic, honey, vinegar, salt, cumin, and cinnamon. Mix the remaining 2 tablespoons of olive oil with 2 teaspoons of the paste. Toss with the sweet potatoes.
2
Scatter the potatoes on the bottom of a roasting pan, and bake 15 minutes. Meanwhile, rub the chicken breasts with the remaining paste.
3
Stir the potatoes. Carefully place the chicken on top of the sweet potatoes, and continue to roast until the chicken is just cooked through (registers 165 on an instant read thermometer), about 15-20 minutes longer