Thai prawn noodle bowl

Ingredients

• 2 centimetre piece fresh ginger, peeled, chopped
• 1 long red chilli, seeded, plus extra, sliced to serve
• 1 stalk lemongrass, outer layers removed, chopped
• 3 cloves garlic, peeled
• 1 bunch coriander, chopped, plus extra sprigs to serve
• 2 tablespoons vegetable oil
• 1 teaspoon coriander seeds, crushed
• 1/4 teaspoon ground turmeric
• 1 cup vegetable or fish stock
• 200 grams rice noodles
• 400 millilitres coconut milk
• 100 grams asian greens, tops removed, stalks quartered
• 12 prawns, peeled, deveined, tails intact
• 2 tablespoons fish sauce
• 2 limes, juice only, plus wedges to serve
• beansprouts, crushed peanuts to serve