Sauce Recipes Creamy Dill and Mustard Sauce Ingredients 2 tbsp butter 3 tbsp plain flour 1 1/4 cups hot fish stock 1 tbsp white wine vinegar 3 tbsp chopped fresh dill 1 tbsp wholegrain mustard 2 tsp granulated sugar 2 egg yolks salt and ground black pepper Preparation: 1) Melt the butter in a saucepan, stir in the flour and cook for 1-2 minutes over a low heat, stirring constantly, off the heat, gradually stir in the hot stock. 2) Return the pan to the heat, bring to the boil, stirring all the time, then lower the heat and simmer for 2-3 minutes, remove from the heat again and beat in the vinegar, dill, mustard and sugar. 3) Using a fork, beat the egg yolks in a small bowl , gradually add a small quantity of the hot sauce, add the contents of the bowl to the sauce, whisking vigorously, place the pan back on the stove and continue to whisk the sauce over a very low heat for 1 minute more, add salt and pepper to taste. Serve at once, with grilled sole, plaice or brill. When buying the fish to serve with this sauce, ask the supplier for the trimmings, use them to make the fish stock. Read aslo: Mayonnaise Sauce and Derivatives   Aioli Sauce Bechamel Sauce   Hollandaise Sauce Food Tip on Preparing Sauces Steak Marinades Recipes  Cooking tips on Marinades and Marinating