Eric's Mushroom Sauce

Make a white sauce with butter and flour and fat free half and half. Remember to roast the flour in the butter until it develops a nutty aroma. In another sauce pan, melt a pat of butter in olive oil, then saute finely chopped shallots or Vidalia onions until glazed, then deglaze with white wine, then add the sliced mushrooms. Combine with the white sauce. Nice over linguini perhaps.