Poulet Roti a l'Algerienne (Algerian Roast Chicken)

Ingredients

• 1 cup Water
• 1 chopped Onion
• 5 tablespoons Olive Oil
• 2 tablespoons Balsamic Vinegar
• 1 tablespoon Dijon Mustard
• 3 Cloves Crushed Garlic
• 1 tsp Black Pepper
• 1 tsp Cayenne Pepper
• To taste Salt
• 1 Chicken