Place raisins in a small dish. Add wine and set aside.
Place chicken between 2 sheets plastic wrap and pound to 1/4-inch thickness. Sprinkle chicken with 1 teaspoon of the salt and 1/2 teaspoon of the pepper; dredge in flour.
Heat oil in a large frying pan over medium-high heat. When oil is hot, add chicken and cook until browned on both sides, about 10 minutes total. Remove chicken and add onion and garlic to pan. Saute for about 2 minutes; then add oregano, remaining salt and pepper, sugar and vinegar. Stir in tomatoes, capers and olives. Add raisins to sauce and stir in chicken broth; cook until thickened, about 5 minutes. Return chicken to pan and heat through.
Arrange chicken and sauce on serving platter and sprinkle with chopped parsley. Garnish with tomato roses.
Try Knorr Stock Pots
Add depth of flavour to an array of slow-cooked meals with Knorr Stock Pots. Available in a range of flavours, from Chicken to Beef and Vegetable to Herb Infusion, these stock pots are quick and easy to use, melting in minutes.