Tom Byoo (Sour Fish Soup)

This is a very light soup that is great to eat if you are in need of something to cleanse your palate. Use a firm-fleshed, white, low-fat fish such as trout or catfish, it adds a delicate flavor to your soup.

Prep Time:
20 mins
Cook Time:
30 mins
Total Time:
50 mins
4 servings


  • 3 cups fish stock

  • 1 (1 inch) piece fresh ginger, peeled and sliced into disks, or more to taste

  • 1 (1 inch) piece galangal, peeled and sliced into disks, or more to taste

  • 5 Thai chile peppers, crushed

  • 2 makrut lime leaves, torn in half

  • 2 stalks lemon grass, cut into 2-inch pieces and crushed

  • 2 shallots, crushed

  • 1 (10 ounce) trout, scales removed and fish cut into steaks

  • 5 cherry tomatoes, halved

  • ¼ cup tamarind juice, or more to taste

  • 2 tablespoons fish sauce, or more to taste

  • ¼ cup chopped fresh cilantro, or to taste


  1. Bring fish stock to a boil in a pot; add ginger, galangal, Thai chile peppers, lime leaves, lemon grass, and shallots. Reduce heat and simmer stock for 20 minutes.

  2. Mix trout, tomatoes, tamarind juice, and fish sauce into stock; simmer until trout is cooked through, about 5 minutes.

  3. Gently place trout in a bowl and pour soup over the fish; top with cilantro.

Nutrition Facts (per serving)

175 Calories
5g Fat
14g Carbs
18g Protein
Nutrition Facts
Servings Per Recipe 4
Calories 175
% Daily Value *
Total Fat 5g 7%
Saturated Fat 1g 7%
Cholesterol 37mg 12%
Sodium 1144mg 50%
Total Carbohydrate 14g 5%
Dietary Fiber 1g 3%
Total Sugars 1g
Protein 18g
Vitamin C 9mg 46%
Calcium 125mg 10%
Iron 2mg 11%
Potassium 666mg 14%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.