4 boneless, skinless chicken breast halves |
2 tablespoons oriental sesame oil |
minced clove garlic |
1 teaspoon chinese 5spice powder |
1/2 cup chicken broth mixed with 1 tablespoon hoisin sauce, and 2 tablespoons soy sauce |
2 tablespoons chilled unsalted butter |
1 small scallion, thinly sliced |
chopped fresh cilantro |
salt and freshly ground pepper |