Chicken Liver Stroganoff with Greek Yogurt

Name: Chicken Liver Stroganoff with Greek Yogurt
Ingredients: 3 tablespoons vegetable oil; 1 pound chicken livers, cleaned and deveined (about 1 pint); Kosher salt and freshly ground black pepper; 5 tablespoons unsalted butter; 8 ounces cremini mushrooms, sliced about 1/8-inch thick (about 4 cups); 1 small red onion, cut in 1/2-inch dice (about 1 cup); 1/4 cup cognac or dry sherry; 1 cup chicken broth; 1 cup whole Greek yogurt; 12 ounces wide egg noodles; 1/4 cup fresh flat-leaf parsley leaves, roughly chopped