Sicilian Sauteed Radicchio
The bitterness of radicchio is tamed by the sweetness of onions and a touch of sugar. A wonderful Italian side dish.
uncooked vidalia onion(s)
1 large, sliced
red wine vinegar
6 cup(s), about 1 large head, cored, sliced lengthwise about 1/4-inch thick
¼ tsp, freshly ground, or to taste