Microwave prawn laksa noodle soup

Name: Microwave prawn laksa noodle soup
Ingredients: 2 vermicelli noodle nests; 400ml can light coconut milk; 3 tbsp laksa or Thai red curry paste; 550ml vegetable stock; 1 red chilli finely sliced (deseeded if you like); 1 garlic clove, finely chopped; 1 lime, juiced; 1 tsp smooth peanut butter; 2 tsp fish sauce; 150g cooked prawns, peeled; small handful of coriander, leaves picked, stems finely chopped