Preheat the oven to 400 F.
Place the garlic and sliced onions in a medium-sized roasting dish. Dot the lemon rounds around the dish and sprinkle with the thyme. Drizzle with a tablespoon of olive oil.
In a separate mixing bowl, toss the chicken pieces with the charoset and add the lemon juice, a pinch of salt and pepper, and 2 tablespoons olive oil. Mix well, allowing the mixture to get under the chicken skin.
Place the chicken pieces in the roasting dish, along with the garlic, onions, lemon and thyme. Pour water in the bottom of the roasting dish and roast for 30 minutes. Turn the chicken pieces over and continue cooking another 15 minutes. The chicken should be caramelized and crisp, and the onions should be softened.
