Melt 1 tablespoon of butter and olive oil in the skillet, on the medium/high heat.Season pounded chicken breasts with salt and pepper, on both sides. Dredge chicken breast in the1/3 cup flour then add chicken to the skillet. Cook 4 minutes of both sides or until chicken is cooked thru. Transfer to a plate and set aside.Add the rest of the butter and oil to the skillet. Add ½ cup onion and saute for 3 minutes, stirring few times. Add garlic, cook for 1 minute. Pour in ½ cup dry white wine and bring it to the boil. Let it boil until wine evaporates, stirring frequently.Place 1 teaspoon flour into a small mixing bowl. Add few teaspoons of broth and mix until smooth and no lumps.Stir in flour mixture and chicken broth into the skillet. Bring it to a boil and cook for 3 minutes, stirring continually. Mix in 2 tablespoons of lemon juice.Return chicken to the skillet, sprinkle 2 tablespoons of capers and 3 tablespoons of chopped parley. Serve warm with mashed potatoes, rice or pasta. Enjoy!