Radicchio Soup

Preparation:

Preparation: Clean the radicchio, cut it as for a salad. In a saucepan, heat the butter and let it dry the white part of the leeks cut into thin rings. After 5 minutes, add the radicchio, sprinkle with flour, mix well, adjust with salt and pepper. Cover with the broth and cook for an hour. Arrange the slices of bread on the bottom of a baking dish with rather high edges, sprinkle them with the cheese, pour the hot radicchio soup on top. Let it grate in the oven at 200 degrees.