Gently spicy chicken, red lentil & apple soup

Ingredients

• 1.8kg (or thereabouts) chicken
• About 3 litres water
• 1 ½ tablespoons olive oil
• 1 large onion, finely diced
• 3-4 nice fat cloves garlic, finely chopped
• 1 small red chilli, finely chopped
• 2 large carrots, peeled and finely diced
• 2 stalks celery, finely sliced
• 2 heaped tablespoons finely chopped fresh ginger
• 3 heaped teaspoons freshly ground cumin seeds
• 1 heaped teaspoon freshly ground coriander seeds
• 1 ½ teaspoons sweet Hungarian paprika
• 2 teaspoons curry powder (I like Clive of India)
• 1 tablespoon sea salt, or more to taste
• ½ teaspoon freshly ground black pepper
• 1 cup (200g) red lentils, thoroughly washed and drained
• 250g orange sweet potato, peeled and finely diced
• ⅓ cup (65 g) brown rice
• 2 large pink lady, Fuji or gala apples, peeled and finely diced
• ¼ cup (60 ml) freshly-squeezed lime juice, or more to taste
• Large handful of tiny chervil or coriander leaves, plus extra to garnish
• Lime wedges, to serve, optional