Bourbon Mustard Chicken

Place chicken between 2 sheets of waxed paper; pound to 1/4" thickness, Place chicken in a shallow baking dish. Combine brown sugar, mustard, bourbon, green onions, salt, and Worcestershire sauce; stirring well. Brush mustard mixture evenly over both sides of chicken breast halves. Cover and marinate in frig 1 hour. Remove chicken from marinade, reserving marinade. Combine butter and oil in lg. skillet, and place over med-high heat. Saute chicken 3 to 4 mins. on each side or until done. Remove chicken to a serving platter, and keep warm. Drain and discard pan drippings. Add reserved marinade to a skillet; bring to a boil, stirring constantly. Pour sauce over chicken.