Name: Seafood Gratin
Prep time: 20 min
Cook time: 60 min
Yield: 4
Cuisine: Mediterranean
Ingredients: For the sauce; 250ml seafood stock or clam juice; 250ml double cream; 125ml good white wine, such as Chablis, plus 3 tbsp; 3 tbsp tomato puree; 1/2 tsp saffron threads; 225g raw prawns, peeled, deveined, and cut in half crosswise; 225g raw halibut, cut into 2.5cm chunks; 225g cooked lobster meat, cut into 2.5cm chunks; 105g unsalted butter, divided; 1 tbsp plain flour; Salt; Freshly ground black pepper; 300g julienned leeks, white and light green parts; 3 julienned carrots; 100g panko (Japanese dried bread crumbs); 35g freshly grated Parmesan; 20g minced fresh flat-leaf parsley; 15g chopped fresh tarragon leaves; 2 cloves garlic, minced