INGREDIENTS
4
boneless, skinless chicken breast halves
4 tbsp
butter
3/4 cup
finely diced onion (about 1 small onion)
1/2 cup
finely diced celery
3/4 cup
finely diced fresh mushrooms (not quite all of an 8 oz. package)
1/3 cup
chicken broth
2/3 cup
champagne
2/3 cup
heavy cream or whole milk
1/4 cup
all-purpose flour
Salt & pepper