ThailandRecipe 015 of 100

Gaeng Som (Southern Sour Curry)

แกงส้ม (DN)gaeng sôm

Southern Thailand · Soup / Seafood

Gaeng som, a Southern Thai sour curry: a thin, translucent orange-yellow broth with flaked white fish, daikon and green beans in a celadon bowl.

About this recipe

A bracingly sour, hot curry — no coconut milk — built on a turmeric-tinged chili paste and soured with tamarind, usually cooked with fish or shrimp and a seasonal vegetable. The Southern style is fierier and more turmeric-forward than the milder Central-plains gaeng som; the two differ enough to note the distinction.

Recipe facts

Yield
4 as part of a shared meal
Prep
20 minutes
Cook
25 minutes
Total
45 minutes
Difficulty
Moderate
Spice
Hot

Allergens Contains fish (fish sauce) and shellfish (shrimp paste in the paste; shrimp if used). Gluten-free. Dairy-free.

Development draft. This is an untested development recipe from the cookbook project. It has not been kitchen-tested, and the quantities and timings are the author’s working draft rather than a verified result.

Ingredients

Sour curry paste

  • 6–8 dried red chilies, soaked
  • 3 shallots; 3 cloves garlic
  • 1 tbsp (10 g) fresh turmeric (or 1 tsp ground)
  • 1 tsp (5 g) shrimp paste (kapi)
  • 1/2 tsp salt

The curry

  • 5 cups (1.2 L) water
  • 3–4 tbsp (45–60 ml) tamarind concentrate
  • 1 lb (450 g) firm white fish (e.g. snapper) or shrimp
  • 12 oz (340 g) mixed vegetables (daikon, green beans, cauliflower or green papaya)
  • 2–3 tbsp (30–45 ml) fish sauce
  • 1 tbsp (15 g) palm sugar

Equipment

  • Mortar and pestle (or small processor)
  • Pot

Method

  1. Pound the paste ingredients to a smooth paste.
  2. Bring the water to a boil and whisk in the paste; simmer 5 minutes to cook it out.
  3. Add the tamarind, fish sauce and palm sugar; taste for a hot-sour-salty balance.
  4. Add the firmer vegetables and simmer until nearly tender.
  5. Add the fish (or shrimp) and any quick-cooking vegetables; simmer gently just until the fish is opaque and flakes.
  6. Adjust the seasoning and serve hot with plenty of steamed rice.

Uses from this chapter

From the foundations

The book pairs this recipe with the following, from the sauces, sambals and pastes that open the collection.

The Complete Edition

Gaeng Som (Southern Sour Curry) sits in the Thailand chapter

The book carries this recipe in full alongside the rest of the Thailand chapter, the pastes and dips it is built on, and the twenty-seven pantry studies that open the collection.

In review with Amazon KDP

Both editions have been submitted to Amazon Kindle Direct Publishing and are currently in review. Submitted prices are $9.99 for the kindle edition and $49.99 for the paperback. Neither is on sale yet, and prices are as submitted rather than final.

The Thailand chapter

Imagery is produced with generative AI tools and reviewed by the author. It is illustrative, not documentary photography of a finished dish. How these images were made.