Tom Kha Kai Soup Recipe: Thai Chicken Coconut Soup

Tom Kha Kai Soup

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Thai coconut soup tom kha kai is a hot first course with a sour and very spicy flavor. By our standards, the ingredients for this soup are quite unusual. Roughly translated from Thai, ต้มข่า ไก่ means chicken soup with galangal. Despite the exotic nature of many of the ingredients, you can quite well make tom kha kai at home. Surprisingly, you can buy everything in supermarkets. And if you wish, many of the ingredients can be substituted without risking the flavor and character of the soup.

Thai recipes call for coconut milk, galangal, lemongrass, various spices, lime, fish sauce and mushrooms. The soup is most often made with chicken or young chicken, just like pho soup. But there are many variations of the recipe. Most often the spices are changed: fennel or dill seeds, kaffir lime leaves, or ginger in place of galangal. Tom kha kai can also be made with meat broth, usually pork, or with seafood.

I read somewhere that a little over a century ago, Thai soup with coconut milk was not considered a soup. It was made by stewing duck or chicken in a light coconut broth with a good amount of seasonings, mainly galangal, and fried chili was added when serving. Later mushrooms, lemongrass, lime, curry and other ingredients were added. Now the popular recipes often don’t have galangal in the name, and the emphasis shifts to curry or coconut milk, as in Thai-style meat.

Galangal is a relative of ginger; it is less “hot” but more sour. It is the root of a ginger-family plant common in Asia and a very popular addition to soups. Its name is often translated as “kalgan”. In Ukraine, kalgan is what some plants of the Potentilla genus are called, and homemade alcoholic drinks are infused with it. From a culinary point of view, ginger and galangal are not the same thing, although in soups outside Asia they are interchanged, with much less ginger used and the sour taste provided by other ingredients, for example the lime in laksa soup.

Tom kha kai made with coconut milk is usually served with rice and eaten like a curry, spooned over the rice. Outside Asia the dish is served as a soup: hot and spicy, with a distinctly sour taste.

Given some difficulties with the ingredients, we tried to make tom kha kai as close as possible to Thai recipes, using what is available. As it turned out, everything can be bought. There are also soup paste “kits” on sale; I didn’t look into their composition or whether they are suitable. As it turned out, the hardest part is the galangal, but we made do with ginger and lime.

Ingredients

2 servings

  • For the broth
  • Chicken wings 8
  • Cold water 1.5 l
  • Garlic 1 head
  • Galangal or ginger 1 large piece (half as much ginger)
  • Lemongrass 1
  • Chili 1
  • Green onions 2-3
  • Thai basil, dried kaffir lime leaves to taste
  • For the soup
  • Coconut milk 400 ml (1 can)
  • Mushrooms (oyster) 150 g
  • Lime 1 (juice of a quarter in the soup, the rest in wedges for serving)
  • Fish sauce 1 tbsp
  • Salt a pinch
  • Curry paste a little, optional
  • Ground chili to taste
  • For serving
  • A sprig of Thai basil or mint, cilantro optional
  • Fresh Thai pepper or regular chili to taste
  • Boiled rice optional

Step-by-step recipe

Broth

  1. The base of tom kha kai is chicken broth. If you like, you can make the broth from a whole chicken or any parts of the carcass. We decided to make a rich soup with coconut milk, using a broth made from wings. They are an affordable product, sold even unfrozen. You can also always buy a pack of wings or buy them by the piece, based on the number of wings per bowl of soup.

  2. Prepare the wings: be sure to remove any remaining feathers and wash them thoroughly.

    Chicken wings.
  3. Put the chicken wings in a pot, cover with 1.5 l of cold water and put the pot on high heat. While the water heats up, prepare all the vegetables and spices for the soup.

  4. Prepare the vegetables and spices. If you have galangal, which is preferable, peel a large piece of the root and slice it into plates. If you use ginger, you need half as much; it gives the soup an overly distinctive flavor, and you will need to adjust the acidity of the dish.

    Cut the green onions into several large pieces; they are discarded after the broth is cooked. Peel the garlic cloves and leave them whole. Remove the seeds from the hot pepper and cut it into several pieces. Cut the lemongrass into large pieces as well.

    Dried kaffir lime leaves and Thai basil are available in stores; it is better not to throw them straight into the broth, but to put them in a sachet bag or simply tie them up in a piece of clean cloth.

  5. Cook the broth: add all the vegetables, the galangal or ginger and the bag of herbs to the pot. When the water comes to a boil, reduce the heat to low and cook for 35-40 minutes, until the wings are tender.

    Broth for the coconut soup.
  6. Remove the bag of herbs and all the vegetables from the finished broth (you can set aside the pieces of galangal and lemongrass for serving), move the wings to a bowl and cover with a saucer so they don’t dry out. You can strain the broth to remove any bits of vegetables and chicken.

Soup with coconut milk

  1. Put the pot of broth on medium heat and pour in the coconut milk. Use canned coconut milk, sold in 400 ml cans; gently stir it with a spoon before pouring. Add 1 tbsp of fish sauce and the juice of a quarter of a lime.

    Broth with coconut milk.
  2. Season the soup with a pinch of salt and taste for acidity. Coconut soup tom kha kai should be distinctly sour. If you cooked with galangal, it will provide the necessary tang. For a soup made with ginger, add extra lime juice.

  3. Cook the mushrooms. In Asia, shiitake and other local varieties are used, which can be bought in any store or market. Here you can buy excellent oyster mushrooms, young and firm. In my taste they suit the soup best. If the oyster mushrooms are not very large, you can leave them whole and just cut off the thick stem; cut larger ones coarsely.

    Oyster mushrooms.

    Bring the soup almost to a boil, add the mushrooms and cook for 4-5 minutes.

  4. Add the chicken wings to the soup and cook over low heat for 5-7 minutes, without letting the soup boil hard. If you like, you can add a little curry paste. After that the tom kha kai is practically ready. All that is left is to add heat to taste: with ground chili, or when serving with small pods of fresh Thai pepper, regular chili cut into rings, and so on.

Serving

  1. Divide the mushrooms and chicken wings equally between deep bowls and pour the coconut soup over them. When serving, the galangal and lemongrass cooked in the soup are often added to the bowls, but they are not eaten: the pieces are usually placed on top as decoration, along with a sprig of Thai basil or mint and pods or pieces of hot pepper. Sometimes cilantro is added when serving.

    Tom kha kai
  2. Serve the soup hot, with lime wedges so everyone can adjust the acidity themselves.

    In Asia tom kha kai is served with boiled rice and used as a sauce. In general, the way of serving resembles a curry: rice and a spicy sauce with meat, chicken (curry with rice) or vegetables.

Calories and macros

880 kcal

Serving ≈ 1190 g

  • Protein48 g22% of kcal
  • Fat73 g74% of kcal
  • Carbs10 g4% of kcal

100 g74 kcalProtein 4.1 gFat 6.1 gCarbs 0.8 g

Calculated from the recipe ingredients, excluding salt and spices. Data: USDA and Matvaretabellen.

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