Mok Pa (Steamed Fish)

Mok pa — fish steamed in banana leaf with a fragrant paste of dill, basil, and on-chili — is Laos's elegant everyday fish: the Mekong's answer to the region's leaf-wrapped steams, distinct for its heavy hand of dill and the on (Lao fermented rice-chili paste) in the marinade. The leaf is the vessel; the steam is the cooking; the herbs are the recipe.
Quantities live in the recipe card.
The fish and marinade
- plus more whole sprigs for the parcels
The parcels and steam
- the banana leaf's perfume is worth it
- **Soften the banana leaves.** Pass the frozen-thawed leaves over a flame or dip in boiling water 10 seconds — they turn pliable and fold without cracking. Cut to roughly 20 cm squares.
- **The bridge:** on (or on pa) is the Lao fermented chili-rice paste with a sour-funky edge; gochujang plus fish sauce is the working bridge at a loss of sourness (add a squeeze of lime to compensate). The dill is non-negotiable — it is mok pa's signature, shared with the or lam (#78) next door.

Mok Pa (Steamed Fish)
Prep: 30 minutes · Cook: 25 minutes · Total: About 1 hour · Serves 4
Ingredients
The fish and marinade
- 600 g firm white fish (catfish, tilapia, or snapper), cut in 4 cm chunks
- 2 tbsp on (Lao fermented rice-chili paste) — or 1 tbsp gochujang + 1 tsp fish sauce as the bridge
- 2 tbsp fish sauce (about 30 ml); 1 tbsp lime juice
- 2 cloves garlic, minced; 1 shallot (about 30 g), minced; 1 stalk lemongrass, tender part minced
- A large handful of dill (about 20 g) and Thai basil (about 15 g), roughly chopped — plus more whole sprigs for the parcels
- 1 egg, beaten (the binder); 1 tsp toasted rice powder (#46's, optional)
The parcels and steam
- Banana leaves (sold frozen in Asian groceries; about 8 sheets) or parchment — the banana leaf's perfume is worth it
- A steamer, or a lidded pot with a rack; 25 minutes of rolling steam
Instructions
- **Marinate (15 minutes).** Toss the fish with the on, fish sauce, lime, aromatics, chopped herbs, and egg until evenly coated. Rest 15 minutes. Checkpoint — the marinade should thickly coat each chunk — the egg binds the herbs and paste to the fish through the steam. Taste the bowl: salty-funky with the dill's perfume — bold, because steaming will mute it slightly.
- **Wrap the parcels.** Lay a softened banana leaf shiny-side down, place a spoon of fish with its coating plus a sprig of dill and basil in the center, and fold the leaf into a flat packet — fold in the sides, then roll to a neat square, securing with a toothpick or a strip of the leaf. Checkpoint — each parcel should be snug and sealed — the fish steams in its own aromatic steam, and a leaking parcel washes its flavor into the pot. Flat, uniform parcels steam evenly; bulky ones steam unevenly.
- **Steam (20–25 minutes).** Steam the parcels over rolling water 20–25 minutes, until the fish is just cooked through — opaque, flaking at a chopstick's probe through the leaf's fold. Checkpoint — eating test — opened at the table, the parcel's first breath is the whole dish: banana leaf, dill, and fermented chili over tender fish. The fish should be moist, gently curdled by the egg, and infused rather than coated. Each diner gets a parcel, opened on their own plate — the unwrapping is the ceremony, and the leaf's perfume is an ingredient the oven never replicates. Sticky rice beside, and the #77's salad for the full Lao table.
Troubleshooting
| Symptom | Cause | Fix |
|---|---|---|
| Fish overcooked, dry | Steamed too long | Check at 20 minutes; the parcels hold briefly off heat |
| Parcels leaked | Leaf cracked or loose fold | Soften leaves fully; double-fold the seams |
| Flavor faint | Marinade under-built | The paste and herbs must be bold — steaming mutes |
Storage, Make-Ahead & Variations
- Marinated fish holds 1 day refrigerated; parcels steam to order. Cooked parcels keep 1 day and re-steam 8 minutes. - Variations: mok pa with vegetables (eggplant, mushrooms folded in), the chicken version, the tiny-fish whole version of the markets. The fusion direction — the banana-leaf parcel with the site's #145's coconut curry pot pie filling — is a fusion-block experiment the site has already sketched.