Grilled River Prawns, known in Thailand as Goong Pao (กุ้งเผา), are one of the country's most iconic seafood dishes. Famous for their enormous freshwater prawns, smoky charcoal aroma, succulent meat, and rich orange prawn fat (tomalley) found in the head, this dish is a highlight of Thai riverside restaurants and seafood markets, especially in Ayutthaya, where grilled river prawns are considered a local specialty.
The beauty of Goong Pao lies in its simplicity. Fresh river prawns are grilled over hot charcoal until the shells turn bright orange and slightly charred while the meat remains juicy and sweet. They are traditionally served with Nam Jim Seafood, Thailand's famous spicy seafood dipping sauce made from garlic, chilies, lime juice, fish sauce, and fresh cilantro.
Whether enjoyed at a bustling seafood market or prepared at home, Grilled River Prawns showcase the natural sweetness of premium freshwater prawns with minimal seasoning and maximum flavor.
What Makes Thai Grilled River Prawns Special?
Unlike heavily seasoned grilled seafood, Thai Goong Pao focuses on the freshness and quality of the prawns. Charcoal grilling enhances their natural sweetness while preserving the creamy, flavorful prawn fat inside the head. The spicy and tangy seafood dipping sauce perfectly complements the rich seafood flavor.
Characteristics include:
- Large freshwater river prawns
- Smoky charcoal aroma
- Sweet, juicy meat
- Creamy orange prawn fat
- Crispy grilled shell
- Fresh spicy seafood dipping sauce
- Signature Thai riverside seafood dish
Preparation Time
- Preparation Time: 20 minutes
- Cooking Time: 10–15 minutes
- Total Time: 35 minutes
- Servings: 4
Ingredients
For the River Prawns
- 8 large freshwater river prawns (about 250–300 g each)
- 2 tablespoons vegetable oil
- 1 teaspoon sea salt
- ½ teaspoon freshly ground black pepper
Thai Seafood Dipping Sauce (Nam Jim Seafood)
- 8 cloves garlic
- 8 Thai bird's eye chilies (adjust to taste)
- ¼ cup fresh cilantro leaves and stems
- 3 tablespoons fresh lime juice
- 2 tablespoons fish sauce
- 1 tablespoon palm sugar
- 2 tablespoons water
Optional Garnishes
- Lime wedges
- Fresh cilantro
- Cucumber slices
- Thai basil leaves
Kitchen Equipment
- Charcoal grill or gas grill
- Tongs
- Sharp kitchen scissors
- Knife
- Cutting board
- Blender or mortar and pestle
- Small serving bowls
Step 1: Prepare the River Prawns
Rinse the prawns thoroughly under cold running water.
Trim the long antennae and sharp rostrum if desired.
Using kitchen scissors, carefully cut along the back of each prawn from the head toward the tail without cutting completely through.
Remove the digestive vein while keeping the shell intact.
Open the shell slightly to expose the meat.
Lightly brush the prawns with vegetable oil.
Season with sea salt and black pepper.
Step 2: Prepare the Seafood Dipping Sauce
In a blender or mortar and pestle, combine:
- Garlic
- Thai chilies
- Cilantro
- Lime juice
- Fish sauce
- Palm sugar
- Water
Blend until smooth but slightly textured.
Taste and adjust:
- Add more lime juice for extra acidity.
- Add more fish sauce for saltiness.
- Add more sugar to balance the heat.
Transfer to a serving bowl.
Step 3: Prepare the Grill
Preheat a charcoal grill until the coals are covered with white ash and produce steady medium-high heat.
If using a gas grill, preheat to approximately 220°C (425°F).
Clean and lightly oil the grill grates.
Step 4: Grill the River Prawns
Place the prawns shell-side down first.
Grill for 5–6 minutes.
Turn carefully.
Cook for another 4–6 minutes, depending on their size.
The shells should become bright orange with light charring.
The meat should be opaque, firm, and juicy.
The creamy prawn fat inside the head should be hot and rich.
Avoid overcooking, as the meat can become dry.
Step 5: Serve
Arrange the grilled river prawns on a large serving platter.
Serve with:
- Thai seafood dipping sauce
- Lime wedges
- Fresh cilantro
- Steamed jasmine rice
- Fresh vegetables
Enjoy immediately while hot.
Chef's Tips
- Choose the freshest river prawns available for the sweetest flavor.
- Charcoal grilling creates the most authentic smoky aroma.
- Do not overcook the prawns, as they cook very quickly.
- Keep the shells on to protect the meat and retain moisture.
- The rich orange prawn fat is considered a delicacy and is traditionally enjoyed with the meat.
- Serve the dipping sauce chilled for a refreshing contrast.
Delicious Variations
Classic Goong Pao
- Charcoal-grilled river prawns
- Nam Jim Seafood sauce
- Steamed jasmine rice
Garlic Butter River Prawns
Brush the prawns with melted butter mixed with minced garlic during the final minutes of grilling.
Lemongrass River Prawns
Add finely chopped lemongrass and kaffir lime leaves to the oil before brushing the prawns.
Spicy Herb Grilled Prawns
Top the grilled prawns with chopped cilantro, Thai basil, sliced chilies, and fried garlic.
Mixed Seafood Grill
Serve river prawns together with:
- Grilled squid
- Grilled mussels
- Grilled fish
- Scallops
- Crab
Nutritional Information (Per Serving)
| Nutrient | Amount |
|---|---|
| Calories | 340 kcal |
| Protein | 38 g |
| Carbohydrates | 5 g |
| Fat | 18 g |
| Fiber | 1 g |
| Sugar | 2 g |
| Sodium | 780 mg |
Nutrition values are approximate and vary based on ingredient brands and serving size.
Storage Tips
Refrigerator
Store leftover grilled prawns in an airtight container for up to 2 days.
Store the seafood dipping sauce separately.
Freezer
Cooked river prawns can be frozen for up to 1 month, although fresh grilling provides the best flavor and texture.
Reheating
Reheat gently in a 180°C (350°F) oven for 5–7 minutes or steam briefly until warmed through. Avoid microwaving for long periods, as the meat can become rubbery.
Best Side Dishes
Grilled River Prawns pair wonderfully with:
- Thai Jasmine Rice
- Sticky Rice
- Green Papaya Salad (Som Tam)
- Grilled Corn
- Stir-Fried Morning Glory
- Thai Seafood Fried Rice
- Fresh Coconut Water
- Thai Iced Tea
Frequently Asked Questions
What are river prawns?
River prawns are large freshwater prawns known for their sweet, firm meat and rich orange head fat. They are larger than most shrimp and are highly prized in Thai cuisine.
Can I use regular prawns instead?
Yes. Jumbo tiger prawns or king prawns make excellent substitutes if freshwater river prawns are unavailable. Reduce the grilling time according to their size.
Why are the heads left on?
The heads contain flavorful prawn fat, which melts during grilling and adds richness to the meat. It is considered one of the best parts of the dish.
Can I cook Goong Pao without a charcoal grill?
Absolutely. A gas grill, grill pan, or oven broiler can be used successfully, though charcoal provides the most authentic smoky flavor.
Final Thoughts
Grilled River Prawns (Goong Pao) are a true celebration of Thailand's rich seafood traditions. With their naturally sweet meat, smoky grilled aroma, and luxurious prawn fat, they offer an unforgettable dining experience. Paired with the bright, spicy flavors of Thai Nam Jim Seafood sauce and simple accompaniments like jasmine rice and fresh herbs, this iconic dish captures the essence of Thai riverside cuisine. Whether served at a festive barbecue or a special family meal, Goong Pao is an elegant seafood recipe that brings the authentic flavors of Thailand straight to your table.
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