It's deep purple skin matches its inner violet flesh, but the flesh can also be somewhat opaque or marbled. Purple Peruvian fingerling potatoes are dry, starchy, earthy and slightly nutty in flavour.
Cooking Radicchio brings out the vegetable's natural sweetness but it can also be served fresh. It can be chopped and sautéed or halved and grilled. Fresh leaves are sturdy enough to be used whole as a cup or wrap. In Italy Radicchio is classically added to risottos and tomato sauces or simply grilled and dressed in olive oil. Radicchio contains antioxidants, vitamins and minerals that may regulate blood sugar level and support heart and digestive health.