1. Flatten chicken and dust with the flour, salt and pepper.
2. In a very large skillet Melt butter and olive oil together over medium heat.
3. Add chicken and saute 5 minutes, turn and add the champagne, continue to cook for 12-15 minutes.
4. Add the cream and rosemary and cook until thickened.
5. Remove to a serving plate, pour sauce over chicken and garnish with parsley.
6. Serve with rice.