For the cognac sauce, take the warm residue from the roast, stir in the mustard, deglaze it with cognac. Then bring to the boil vigorously.
Add the soup and let the cognac sauce boil down nicely. Add whipped cream and boil down again.
For the cognac sauce, take the warm residue from the roast, stir in the mustard, deglaze it with cognac. Then bring to the boil vigorously.
Add the soup and let the cognac sauce boil down nicely. Add whipped cream and boil down again.