Dip chicken in egg, then coat with breadcrumb mixture.
Melt butter and oil in large skillet. Add chicken, cook on medium heat about 4 minutes on each side, or until chicken has light golden color. Remove to baking pan
Pour Marsala wine over chicken (about 1 cup to 4 breasts).
Bake covered at 350 degrees until done (about 30 minutes.) Don't overcook.