Spiced parsnip soup - Good Food Middle East

Ingredients

• small knob of butter
• 1 onion, sliced
• 2 garlic cloves, sliced
• small piece fresh root ginger, peeled and sliced
• 6 large parsnips, peeled and chopped
• 1 tsp cumin seed
• 1 tsp coriander seed
• 2 cardamom pods
• 1 tbsp garam masala
• 1.2l vegetable stock
• 150ml pot double cream
• 1 tsp olive oil
• 1 tsp toasted cumin seeds
• 1 red chilli, deseeded and sliced
• coriander leaves