Nam Prik Goong Siab (น้ำพริกกุ้งเสียบ)

The Dip That Names Its Shrimp

The dish is named for its shrimp, not its technique: กุ้งเสียบ (goong siab) are small shrimp threaded onto thin bamboo skewers — เสียบ means to skewer — and dried in the sun until they smoke of the sea. Sold in bundles on southern street stalls, they are a snack in their own right, but their proper destiny is the mortar.

In Phuket this dip belongs to the island's famous น้ำชุบ (nam chub) family, as the 2010 Pantip thread on the subject records: น้ำชุบหยำ, chopped with a knife, and น้ำชุบยอก, pounded in a mortar — the goong siab version is pounded, so it sits in the yok school. The backbone is always the same: kapi, the fermented shrimp paste that gives every southern nam phrik its depth, plus shallots, garlic, chillies, palm sugar and lime.

The recipe travels. A Cookpad cook from Chai Nat, deep in the central plains, found herself craving the dip with no goong siab in sight — so she made it with ordinary large dried shrimp (กุ้งแห้ง) and reported it works. That same swap is the one you'll most likely need in Britain.

The Recipe (home version, from Wongnai)

The Pantip pot (topic 36502509): 30 g roasted goong siab, kapi grilled in a banana leaf, 3 tsp palm sugar, the juice of 1 large lime, aromatics dry-roasted first — and the one Thai source that asks for a sweet-forward balance, served with vegetables blanched in salted water. The Krua pot: goong siab or sun-dried shrimp roasted in a covered pan for 10–15 minutes, pounded with large red bird's eye chillies and grilled kapi, seasoned with palm sugar and lime or calamansi. The Aroifin pot: 300 g goong siab with only 2–3 chillies, 1½ tbsp kapi, 1 tbsp white sugar plus ½ tbsp palm sugar and 1 tbsp lime — the mildest version. The Cookpad pot: ordinary large dried shrimp, dry-roasted, folded in lightly and served with a boiled egg.

The Method

1. The kapi. Wrap the shrimp paste in foil and toast it on a dry pan over low heat until it smells cooked — raw kapi is ferocious, grilled kapi is deep. Pantip wraps it in a banana leaf and grills it; Krua grills it too. Aroifin skips the grilling, but no source skips the kapi itself.
2. The aromatics. Pound the shallots, garlic and bird's eye chillies in the mortar until fine. Pantip and Aroifin's tip both suggest dry-roasting them in the pan first for a deeper, smokier paste — worth the extra two minutes.
3. The dressing. Add the toasted kapi with the fish sauce, palm sugar and lime juice, and pound until everything dissolves into a glossy, pungent paste. Taste now, before the shrimp go in.
4. The shrimp. Dry-roast the goong siab over medium heat until crisp and smoky, then fold it through the paste. Do not grind it to dust — Aroifin warns that over-pounding kills the texture, and Krua pounds only until the shrimp just breaks. Wongnai folds them in whole.
5. The serve. Spoon into a small bowl with fresh vegetables — cucumber, long beans, cabbage, baby corn. Pantip blanches the vegetables in salted water and shocks them in cold for extra crunch; Cookpad adds a boiled egg. Both work with hot rice.

Where Thai Sources Disagree

How Western Versions Get It Wrong

• Fresh prawns. The dish is defined by goong siab — smoky, leathery, intensely shrimp-flavoured dried shrimp. Stir-fried fresh prawns give you a seafood relish, not this nam phrik.
• The food processor. Blitzing turns the paste smooth and the shrimp to dust. The point is a coarse pounded paste with crisp shrimp pieces you can still see and bite.
• Skipping the kapi. This is a nam phrik, and kapi is its backbone. Swap in fish sauce alone and you have a dressing, not a dip. Use Thai kapi — Malaysian belacan is the same idea but funkier and saltier than the Thai version this dish expects.
• Treating it as a sweet chilli sauce. It is not nam jim. The balance is pungent, salty and sour with sweetness in support — only one of our six Thai sources lets sweetness lead.
• Serving it as a garnish. In the south this is a main course condiment, eaten by the spoonful with hot rice and a plate of vegetables. A drizzle over canapés misses the dish entirely.

UK Ingredient Notes

• Goong siab (กุ้งเสียบ): skewered dried shrimp at Thai grocers and online Thai supermarkets. No luck? Use ordinary large dried shrimp — exactly the swap Cookpad's Warakitchen made in Chai Nat — or sun-dried shrimp, Krua's stated alternative.
• Kapi (กะปิ): Thai shrimp paste in tubs at any Thai grocer. Buy a Thai brand, not belacan.
• Bird's eye chillies, shallots, garlic: any Asian grocer; Thai red shallots if you can get them, standard shallots otherwise.
• Palm sugar: pressed discs at Thai grocers; soft light brown sugar works in a pinch.
• Vegetables: cucumber, long beans (or green beans), cabbage, baby corn — all standard UK supermarket produce.

Sources

This recipe is translated from the following Thai-language sources. Where they disagree, we've said so.