Grilled Prawns with Fiery Lemongrass-Chilli Sambal
Peer reviewed by UK recipe editorsAuthored by UK recipe editorsOriginally published 16 Jan 2026
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These grilled prawns with fiery lemongrass-chilli sambal bring an explosion of Southeast Asian flavour to the table. The dish centres on a punchy, homemade sambal paste made from fresh ginger, shallots, and aromatic lemongrass, which provides both a fragrant marinade and a rich dipping sauce. Using prawns in their shells ensures the meat remains succulent and sweet during the high-heat cooking process, though they can be peeled if you prefer a less messy dining experience.
This vibrant dairy-free dish is an excellent choice for a sophisticated starter or a light main course served alongside jasmine rice. The sambal can be prepared up to a day in advance, making it a stress-free option for entertaining guests or elevating a weekend barbecue. Packed with turmeric and fresh aromatics, it is as nutritious as it is flavourful.
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Ingredients for Grilled Prawns with Fiery Lemongrass-Chilli Sambal
6 (or more) Thai bird chillies or 2 (or more) serrano or jalapeño chillies (preferably red), seeded, coarsely chopped
170g coarsely chopped shallots (about 230g )
40g chopped peeled fresh ginger
45ml chopped lemongrass (from bottom 4 inches of 2 large stalks)
6 macadamia nuts
4 garlic cloves, coarsely chopped
2 teaspoons (packed) golden brown sugar
2 teaspoons turmeric
1 1/2 teaspoons salt
1 teaspoon ground coriander
1 teaspoon paprika
1 bay leaf, crumbled
1/2 teaspoons freshly ground black pepper
2 tablespoons (or more) vegetable oil
240ml water
2 tablespoons fresh lime juice
45ml (or more) vegetable oil
1.4kg uncooked unpeeled large prawns, or 1.1kg uncooked peeled large prawns, deveined, tails left intact
How to make Grilled Prawns with Fiery Lemongrass-Chilli Sambal
Combine 6 Thai bird chillies (or 2 serrano or jalapeño chillies) and next 12 ingredients in processor. Using on/off turns, blend until finely chopped and paste forms. If spicier sambal is desired, add more chopped chillies to taste and blend again until paste forms. Transfer sambal to small bowl. Heat 2 tablespoons oil in heavy large saucepan over medium-high heat. Add sambal and cook until fragrant and lightly browned, stirring constantly and adding more oil by tablespoonfuls if mixture is dry, about 7 minutes. Add 240ml water; reduce heat to medium and simmer until most of water is absorbed but mixture is still creamy, stirring often, about 4 minutes. Transfer to small bowl and cool. DO AHEAD:Can be made 1 day ahead. Cover sambal and chill.
Whisk lime juice, 45ml oil, and 2 tablespoons sambal in small bowl. DO AHEAD: Can be made 1 day ahead. Cover and chill. Rewhisk marinade before using, adding more oil by teaspoonfuls if marinade is thick.
If using unpeeled prawns, use kitchen scissors to cut prawns shell along rounded back of tail; scrape out vein with tip of bamboo skewer or tip of small knife. Place peeled or unpeeled prawns in large glass baking dish. Brush prawns all over with marinade. Allow prawns to marinate at room temperature at least 15 minutes and up to 30 minutes.
Meanwhile, prepare barbecue (medium-high heat). Brush grill rack with oil. Grill prawns until just opaque in centre, 2 to 3 minutes per side. Transfer prawns to platter. Rewarm remaining sambal and serve alongside for dipping or for spooning atop prawns.
Unpeeled prawns cook up more succulent and flavorful but are a bit messier to eat than peeled prawns (which you can use, if you prefer). For ease of preparation, the seafood department at some supermarkets sells uncooked unpeeled prawns that have already been deveined.
Disclaimer
While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.
Article history
The information on this page is peer reviewed by qualified clinicians.
16 Jan 2026 | Originally published
Authored by:
UK recipe editors
Peer reviewed by
UK recipe editors

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