Really easy roast chicken - Good Food Middle East

Ingredients

• 1 whole chicken, about 1½ kg
• 1 lemon, halved
• 2 garlic cloves
• thyme or rosemary sprig, if you have it
• 50g soft butter
• 800g very small salad potatoes, such as Charlotte, halved if you can only find large ones
• 350g small Chantenay carrots, or 3-4 regular carrots. cut into chunks
• 1 tbsp olive oil
• 300ml chicken stock
• 1 tbsp low-salt soy sauce