Roasted Rosemary Chicken
["1 fryer-broiler chicken (about 3 to 4 lb.), cut into 8 pieces", "2 Tbsp. extra-virgin olive oil", "1 onion, halved lengthwise and slivered", "1 Tbsp. garlic, finely minced", "1 sprig fresh rosemary, leaves finely minced", "Salt and pepper to taste", "2/3 c. prepared marinara sauce", "1/2 c. water"]
["Rinse the chicken pieces, removing any excess fat and the wing tips.", "Pat dry.", "Place the olive oil in a Dutch oven over low heat and saute the onion, stirring occasionally, for 5 minutes. Add the garlic and cook, stirring, 5 minutes longer.", "Add the minced rosemary leaves.", "Preheat the oven to 375\u00b0."]
["chicken", "extra-virgin olive oil", "onion", "garlic", "rosemary", "Salt", "marinara sauce", "water"]