How to Make It
Heat the oil in a medium nonreactive saucepan. Add the onion and cook over moderate heat, stirring occasionally, until softened, about 5 minutes. Add the curry powder and cook for 2 minutes. Stir in the tomato paste, then the wine, 1/2 cup of water and the bay leaf and bring to a boil. Add the thyme, oregano and 1/2 tablespoon of the lemon juice and cook until thickened and reduced by three-quarters, about 6 minutes. Strain the sauce into a large bowl, pressing hard on the solids; let cool.
Add the mayonnaise, jam and remaining 1/2 tablespoon of lemon juice to the sauce. Fold in the chicken and currants and season with salt and pepper. Refrigerate until chilled for up to 1 day. Sprinkle with the parsley and serve.