Lime Cilantro Chicken

a few tablespoons olive oil
1/2 medium yellow onion
3-4 garlic cloves, minced
1/2 cup orange juice
1 lime juiced
1/2 cup roughly chopped fresh cilantro
1 teaspoon salt
2 teaspoons pepper
4 boneless skinless chicken breasts

Heat olive oil in saucepan over medium heat. Add the onion and garlic and saute until soft. Add the orange and lime juices and cook for 5 minutes. Add the cilantro, salt and pepper. Set chicken in a baking dish and pour marinade over chicken. Marinate for anywhere from one hour to 24 hours. Bake at 375 for 20-30 minutes depending on how thick chicken is and/or altitude. I served this with sweet potato fries and steamed brocoli and cauliflower. Such a great dinner!