Thai Isaan Nam Prik Ong (Tomato-Chili Dip)

About This Recipe

Nam prik ong is a beloved Isaan condiment — a rustic, chunky dip made from roasted tomatoes, chilies, garlic, and shrimp paste. It's served as a communal dish during meals, with fresh vegetables for dipping and sticky rice on the side. The roasted ingredients give it a deep, complex flavor. Rooted in the everyday cooking of Thai Isaan kitchens, Thai Isaan Nam Prik Ong (Tomato-Chili Dip) balances technique and tradition: the tomatoes, halved is treated with care, drawing on time-honoured ratios that locals have refined across generations. The dish carries an unmistakable sensory signature — aromas that fill the kitchen as it cooks, layered textures that reveal themselves bite by bite, and a depth of flavour that comes from patient seasoning rather than shortcuts. Whether served as a weeknight starter or as the centrepiece of a celebratory table, it reflects a regional pantry where local produce, seasoning habits and cooking vessels shape the final result. Home cooks who make this dish often note how forgiving it is once the core method is understood, and how a few small choices — the freshness of the tomatoes, halved, the order of additions, the resting time at the end — separate a good version from a memorable one. This recipe walks through those choices so the dish arrives with the character it has on its home turf.

Ingredients

Serves 4

• 400 gtomatoes, halved
• 3thai red chilies
• 4 clovesgarlic
• 1 tbspshrimp paste
• 2 tbspfish sauce
• 1 tspsugar
• 2 tbspoil(for serving)

Instructions

1. 1

   Roast

   Char tomatoes, chilies, and garlic directly over a flame or under a broiler until blistered and softened, 10–12 minutes.

2. 2

   Pound

   Transfer to a mortar. Add shrimp paste and pound until chunky-textured.

3. 3

   Season

   Add fish sauce and sugar. Taste and adjust seasoning.

4. 4

   Serve

   Transfer to a serving bowl. Drizzle with oil. Serve with fresh vegetables, sticky rice, and grilled fish.

Variations

• •

  Add roasted peanuts

• •

  Make with just tomatoes and chilies for vegetarian version

• •

  Add minced pork for a heartier dip

• •

  Vegetarian: replace the main protein with mushrooms, paneer, tofu or hearty beans for a meat-free version.

• •

  Spicier: add fresh chilli, a chilli paste or a pinch of cayenne with the aromatics for a warmer profile.

Storage

Refrigerate up to 4 days. Freezes well for 1 month. Refrigerate in an airtight container for up to 3–4 days. Reheat gently on the stove over low heat with a splash of water or stock to loosen, or microwave at 60% power covered so it warms without drying. Freezes well for up to 2 months in portioned containers; thaw overnight in the fridge before reheating. Dishes built on dairy or fried elements may shift in texture after freezing — refresh with a crisp garnish.

Frequently Asked Questions