Easy Indonesian-style King Prawn Noodle Soup

Easy Indonesian-style King Prawn Noodle Soup

Inspired by Soto Ayam, a popular Indonesian chicken soup. Starring responsibly-sourced king prawns, you'll simmer them in a warming broth, infused with fragrant lemongrass and ginger. Serve alongside brown rice noodles, to soak up all the flavour. Garnish with fresh coriander and lashings of lime.

Prep in 10 6 plants

Serving size

Cook time: 25 mins
Cuisine: Indonesian
Food group: Shellfish
Allergens: Crustaceans

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Cooking Instructions

The protein cooking time listed in this recipe has been updated.

As of December 2025, we’ve revised cooking times for all our proteins to reflect improved food safety guidance.

Check out the latest recommended times in our Cooking Guidelines.

Before you start

  • Bring a medium saucepan filled with salted water to a boil
  • Pull out a large saucepan, a sieve & a measuring jug

Boil the noodles

  • Add the noodles to the saucepan of boiling water, gently separate with a fork and boil for 3-4 mins, until cooked
  • Drain, then rinse under cold water

Prep time

  • Thinly slice the mushrooms. Cut the onion into 8 wedges. Roughly chop the fresh coriander. Quarter the lime

Make the soup

  • Heat the large saucepan with 1 tbsp oil on medium-high heat. Once hot, add the onion and mushrooms and cook for 2-3 mins
  • Add the ginger & garlic paste, lemongrass puree and ground coriander, then cook for 2 mins
  • Add 600ml water (300ml for 1 person), the coconut milk and stock powder, then stir, bring to a boil and simmer for 10 mins

Add the prawns

  • Add the prawns to the broth and simmer for 9 mins, until pink and cooked through. Season with salt and pepper
  • In the final 5 mins, add the mangetout and cook until tender

Plate up

  • Check your prawns are cooked through; they should be opaque, firm and steaming hot
  • Share the noodles between bowls. Ladle over the soup and top with the fresh coriander. Garnish with the lime wedges, for squeezing over

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