Warm Chicken a la Vinaigrette

WHAT YOU'LL NEED

• 10 grams Knorr Chicken Stock Cube
• 1 tbsp vegetable oil
• 1.2 kg whole chicken
• For the vinaigrette dressing:
• 40 ml white wine vinegar
• 75 ml extra virgin olive oil
• 1 small red onion, finely chopped
• Black pepper, to taste
• 1 tbsp chopped parsley
• 1 tbsp chopped chives
• A handful small basil leaves