This recipe for basic sweet and sour fish sauce (nuoc mam) comes flavored with lime juice, sugar, garlic and chile paste. Add the fish, skin side down, and press lightly with a spatula to sear the skin for 10 seconds for each fillet. Preparation. Mix flour, 3 tablespoons oil, baking powder and 1/2 teaspoon salt in small bowl. In a large nonstick skillet, heat the remaining 2 tablespoons of oil until shimmering. ... Easy Thai Grilled Fish Fillets 25 mins Ratings. Toss fish pieces with 2 tablespoons cornstarch in medium bowl to coat. ... Thai Stir-Fried Vegetables With Garlic, Ginger, and Lime 20 mins Ratings.