Nam Prik Ong

Nam Prik Ong

น้ำพริกอ่อง·(nám prík òng)

Sunday Heritage Simmers & Regional Thai Traditions

Growing up in an Ohio suburb, the smell of sizzling chili paste and pork meant it was Sunday. Originally from the Lanna kingdom of Northern Thailand, Nam Prik Ong is the ultimate weeknight flavor bomb, a dish driven entirely by technique rather than luxury. In the old country, grandmothers relied on pungent fermented soybean discs and lip-puckering local tomatoes to build its signature sweet, sour, and savory profile. For the diaspora kitchen, the practical cook adapts without losing the soul of the dish: sharp shrimp paste stands in for the funk, and the ripest cherry tomatoes replicate that native tang. True Northern cooks will tell you with fierce pride that no sugar belongs here—the magic lies entirely in the "Ong," a slow, patient simmer that breaks down the tomatoes until their juices meld with the fat of the pork into a rich, luscious relish.

Before you start

  • Soak the dried chilies.

    Snip the large California and small Thai chilies into pieces and soak in warm water for 15 minutes to soften before pounding.

Ingredients

  • dried California chilies4
  • dried Thai bird's eye chilies2
  • coarse kosher salt1 tsp
  • garlic5 small clove
  • shallots3 med
  • Thai shrimp paste1 tbsp
  • cilantro root1
  • neutral cooking oil2 tbsp
  • ground pork1 lb
  • cherry tomatoes1 1/2 lb
  • water1/4 cup
  • fish sauce2 tbsp
  • cilantro and scallions1/4 cup

Method

  1. 01

    Pound the soaked dried chilies and coarse salt in a heavy granite mortar until a rough paste forms.

    The salt acts as an abrasive to help break down the tough chili skins.

  2. 02

    Add the garlic, shallots, and cilantro root to the mortar, pounding until well integrated.

  3. 03

    Add the shrimp paste and pound gently just to incorporate the mixture.

    A slightly coarse texture yields a better, more rustic mouthfeel than a perfectly smooth puree.

  4. 04

    Heat the neutral oil in a wok or wide skillet over medium heat and fry the freshly pounded chili paste for two minutes.

    Stir constantly until the raw smell of garlic and shrimp paste mellows into an intensely savory aroma.

  5. 05

    Add the ground pork, using a spatula to continuously break it up so it doesn't clump.

    Toss it thoroughly with the chili paste until the pork is mostly cooked through and no longer pink.

  6. 06

    Fold in the quartered cherry tomatoes and water to deglaze the pan, then reduce the heat to medium-low.

  7. 07

    Allow the mixture to gently simmer, occasionally pressing down on the tomatoes with the back of the spatula.

    This helps them burst and release their sweet and sour juices.

  8. 08

    Continue simmering for ten to fifteen minutes until the water evaporates and the sauce thickens.

    This is the "Ong" process. You want the pork and tomatoes to melt together, leaving a beautiful orange chili oil pooling at the edges.

  9. 09

    Turn off the heat, season with fish sauce to taste, and transfer to a communal bowl.

    Garnish with chopped cilantro and scallions.

Notes

  • The diaspora secret to lackluster tomatoes.

    If your American supermarket tomatoes are pale and completely devoid of flavor, add exactly 1 teaspoon of palm sugar and 1 teaspoon of tamarind paste at the very end to fake the native sweetness. Don't tell the aunties back in Chiang Mai.

  • How to eat it like a local.

    Serve family-style with warm sticky rice, raw vegetables like cabbage wedges and long beans, and crispy pork rinds for scooping.

  • Respect the fat content.

    Lean pork or turkey will turn this into a watery soup; the 15 to 20 percent fat content is crucial to create the luscious orange oil slick that carries the dish's fat-soluble flavor compounds.

From Cook Thai in America.

Robot Book Club is a publishing company staffed entirely by robots. © 2026. Read More · Twitter