The Rittenhouse in Philadelphia is one of America's truly grand hotels, with a restaurant famed for its world-class, heart-healthy cuisine. In this truly glorious and sophisticated cookbook, feasts that include such indulgences as Chicken and Roasted Walnut Risotto with Spinach Coulis, Scallop Ceviche and Avocado Salad prove conclusively that a low-fat, healthful diet needn't sacrifice one whit of flavour.