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Nani Arsik Batak Style Fish Dish

Batak-Style Spiced Fish (Nani Arsik)

Nani Arsik is a signature dish of the Batak Toba ethnic group in North Sumatra, Indonesia. It's a whole freshwater fish simmered slowly in a rich blend of spices, herbs, and the unique citrusy tingle of andaliman (Batak pepper). Traditionally, this dish is served during family ceremonies, weddings, and special occasions. The balance of aromatics and bold flavors creates an unforgettable culinary experience that showcases the diversity of Indonesian cuisine.
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Prep Time 20 minutes
Cook Time 40 minutes
Total Time 1 hour
Servings: 4 people
Course: Main Course
Cuisine: Batak, Indonesian
Calories: 320
Ingredients Method Notes

Ingredients
  

For the Fish
  • 500 grams 1 lb whole freshwater fish, such as trout, snapper, or sea bass (originally: ikan mas — common carp)
  • Juice of 1 lime or lemon
  • 1 teaspoon salt
  • 1 stalk torch ginger kecombrang, thinly sliced — (can be substituted, see notes)
  • 4 Indian laurel leaves daun mangkokan, coarsely sliced — (see notes)
  • 5 small Batak shallots lokio, halved — (substitute with pearl onions or small shallots)
  • 1 small bunch of Indonesian basil daun kemangi, leaves only — (substitute with Thai or sweet basil)
  • 8 stalks lemongrass serai, bruised
  • 3 slices dried Garcinia asam gelugur — (substitute with tamarind paste or lemon juice)
  • 300 ml 1¼ cups water
For the Spice Paste (Bumbu Halus)
  • 6 cloves shallots bawang merah
  • 4 cloves garlic bawang putih
  • 10 red curly chili peppers cabai merah keriting — adjust to your heat preference
  • 3 candlenuts kemiri, toasted — (can use macadamia nuts as substitute)
  • 4 cm 1.5 in ginger (jahe)
  • 6 cm 2.5 in turmeric root (kunyit)
  • 4 cm 1.5 in galangal (lengkuas)
  • 1 teaspoon andaliman — see notes
  • 2 teaspoons salt

Instruction
 

  1. Clean the fish
    Remove the scales, gills, and innards of the fish. Rinse thoroughly and pat dry. Rub the fish with lime juice and salt. Let it sit for 20 minutes to reduce odor and firm up the flesh.
  2. Prepare the spice paste
    Blend all ingredients listed under spice paste into a smooth mixture using a food processor or mortar and pestle.
  3. Stuff the fish
    Mix one-third of the spice paste with some of the sliced torch ginger, Indian laurel leaves, and shallots. Carefully stuff this mixture into the fish’s cavity.
  4. Layer the pot
    In a wide, shallow pan or wok, spread half of the bruised lemongrass stalks and some torch ginger at the bottom. Place the fish on top.
  5. Assemble the rest
    Pour the remaining spice paste over the fish. Scatter the rest of the sliced herbs and basil leaves around it. Add the dried Garcinia (or tamarind), remaining lemongrass, and water.
  6. Cook slowly
    Cover and simmer on low heat for 30–40 minutes, or until the fish is fully cooked and most of the liquid has reduced, leaving a thick coating of spice on the fish.
  7. Serve
    Gently transfer the fish to a serving plate. Garnish with fresh basil if desired, and serve hot with warm steamed rice.

Notes

  • Ikan Mas (Common Carp): This freshwater fish is traditional in Indonesia but not popular in the West. Trout, red snapper, or branzino are excellent alternatives.
  • Kecombrang (Torch Ginger): Rare outside Southeast Asia. You can mimic its floral aroma by combining extra lemongrass and a bit of fresh ginger.
  • Daun Mangkokan (Indian Laurel Leaves): Not available internationally. Substitute with spinach or omit without losing much flavor.
  • Lokio (Batak Shallots): Use pearl onions or small shallots, halved.
  • Kemangi (Indonesian Basil): Thai basil or sweet basil can be used for a similar anise-like aroma.
  • Asam Gelugur (Dried Garcinia): Commonly used for sourness. Use 1 tablespoon of tamarind paste or 1 tablespoon lemon juice as a substitute.
  • Andaliman (Batak Pepper): A rare, citrusy pepper with a numbing effect. The closest Western substitute is Sichuan peppercorns, used in moderation.
  • Spice Level: Indonesian chili can be quite hot. If you're not sure about your spice tolerance, start with 3–5 chilies instead of 10.
  • Serving Suggestion: Serve with plain steamed jasmine rice. Add sautéed greens or cucumber salad on the side for freshness.

What is Andaliman (Batak Pepper)?

Andaliman is a type of spice that grows exclusively in Indonesia, specifically in the Toba Samosir and North Tapanuli regions of North Sumatra. It looks similar to black peppercorns—small and round—and turns dark when dried.
It resembles Szechuan pepper, with a slightly citrusy and numbing sensation on the tongue. If andaliman is unavailable, Szechuan peppercorns are the closest substitute.