Udang Jerbung Kalasan - Grilled/roasted fragrant prawns
Udang Jerbung Kalasan is prawns simmered in a fragrant coconut-and-spice marinade, then grilled over charcoal until browned. The marinade gives the prawns a savoury, aromatic coating that makes this Indonesian-inspired dish well suited to a shared meal.
Ingredients
- 500 gbanana prawns or tiger prawns
- 200 mlcoconut water
- 1 tsplemon juice
- 1½ tspsalt
- 1 stalklemongrass
- 1 cmgalangal
- 2Indonesian salam leaves
- 1 tbsppalm sugar
- 100 mlcoconut milk
- 4shallots
- ⅙ tspcumin
- 3candlenuts
- ½ tspcoriander
- 4 clovesgarlic
Instructions
- 1
Prepare the prawns
Clean the prawns, then toss them with the lemon juice and ½ teaspoon of the salt. Pound or grind the shallots, cumin, candlenuts, coriander and garlic into a paste, and grate the galangal.
- 2
Make the marinade
Heat the coconut water in a pan with the spice paste, grated galangal, lemongrass, salam leaves, remaining salt and palm sugar. Bring to the boil, add the coconut milk and bring to the boil again, then remove the pan from the heat.
- 3
Marinate the prawns
Add the prawns to the marinade and leave them to soak for at least 45 minutes.
- 4
Grill until browned
Thread the prawns onto skewers and grill or roast them over a charcoal fire until brown, sprinkling them with the marinade as they cook.
What is Udang Jerbung Kalasan?
Udang means prawns in Indonesian, and Kalasan refers to a style of preparation associated with the area of Kalasan in Java. This version uses a coconut-based spiced marinade before grilling the prawns over charcoal.
Coconut water, coconut milk and aromatics make a fragrant coating, while grilling adds browned edges. The marinade also serves as a baste as the prawns cook.
Nutrition and macros by portion
The nutrition label shows one serving as written: 1750 calories, 0g protein, 0g carbs, 0g fat.
| Portion | Adjustment | kcal | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| Lighter | Less coconut milk | 1225 kcal | 0g | 0g | 0g |
| This serving | As written | 1750 kcal | 0g | 0g | 0g |
| Hungry | Larger prawn portion | 2625 kcal | 0g | 0g | 0g |
The prawns provide most of the protein, while the palm sugar and coconut water contribute carbohydrates. Coconut milk and candlenuts contribute fat. Serve a portion with vegetables and a moderate helping of rice to make a more rounded plate.
Building the marinade
Spice paste: pounding the shallots, garlic, cumin, candlenuts and coriander helps them blend into the coconut liquid. Grating the galangal helps it disperse through the marinade.
Aromatics: lemongrass and salam leaves infuse the liquid as it heats. Bring it to the boil with the coconut water and seasonings, then add the coconut milk and bring it back to the boil before taking it off the heat.
Marinating the prawns
Lemon and salt: the prawns are first tossed with lemon juice and ½ teaspoon of the salt. This happens before they go into the cooked marinade.
Time: leave the prawns in the marinade for at least 45 minutes, as the recipe directs. Thread them onto skewers when you are ready to grill.
Grilling and doneness
Basting: grill or roast the skewered prawns over a charcoal fire and sprinkle them with marinade as they cook. Turn them as needed so they brown on more than one side.
Doneness: prawns cook quickly, so watch for flesh that has turned opaque and feels firm rather than continuing to grill them for a long time. The recipe gives browning as its visual cue and does not specify a separate cooking time.
Serving the prawns
Serve the prawns straight from the grill while their browned surfaces are still warm. Rice is a practical accompaniment for soaking up any extra marinade.
For a more balanced plate, add vegetables such as cucumber or greens alongside the rice and prawns. Keep any marinade used for basting separate from what you serve at the table.
Recipe notes & tips
- Keep the prawn size as even as possible so the skewers cook more evenly.
- Soak wooden skewers before using them over the charcoal fire.
- Leave the prawns in the marinade for at least 45 minutes.
- Keep a little marinade available for basting while the prawns grill.
- Grate the galangal finely so it is easier to mix into the marinade.
Variations
- Add chilli: include fresh chilli in the spice paste for a hotter marinade.
- Use prawns: choose banana prawns or tiger prawns, as listed in the recipe.
- Cook indoors: use a grill pan if a charcoal fire is not available.
- Serve with rice: add steamed rice to make the prawns part of a fuller meal.
Common mistakes to avoid
- Skipping the first seasoning: toss the prawns with lemon juice and ½ teaspoon of salt before adding them to the marinade.
- Shortening the marinade: leave the prawns for at least 45 minutes as directed.
- Adding coconut milk too early: add it after the coconut-water mixture has first come to the boil.
- Letting the prawns overcook: watch for opaque, firm flesh and remove them once cooked.
- Forgetting to baste: sprinkle the prawns with marinade while they grill or roast.
How to store
Refrigerate leftover cooked prawns in a covered container and eat within 2 days. Reheat gently until hot throughout, taking care not to cook them for longer than necessary.
Frequently asked questions
Can I use tiger prawns instead of banana prawns?
Yes. The ingredient list allows either banana prawns or tiger prawns.
How long should the prawns marinate?
Leave them in the marinade for at least 45 minutes.
Can I make these without a charcoal fire?
The recipe specifies grilling or roasting over charcoal. A grill pan can be used indoors, though it will not give the same charcoal flavour.
What can I use instead of salam leaves?
The recipe does not give a substitute. Salam leaves have a distinct flavour, so the result will differ if you leave them out.
What should I serve with the prawns?
Rice and vegetables make straightforward accompaniments and go well with the coconut-spice marinade.
Cook it from the original
This recipe comes from asiancook.eu. Their page has the author’s own photos, notes and tips — the best place to cook it from.
Open the recipe on asiancook.eu