Step 1

Place lemon grass, red chillies, kaffir lime leaves, ginger and shallots in mixing bowl then chop 4 sec/speed 10. Scrape down sides of mixing bowl then chop again 4 sec/speed 10.

Step 2

Add chicken stock, mushrooms, fish sauce, sugar and tom yum paste then heat 8 min/100°C/speed 1.

Step 3

Add prawns and cook 3 min/100°C//speed 1.

Step 4

Add lime juice, mix in with spatula, then pour into serving bowls and garnish with chopped corinader and spring onions.