Slice onions, cut each slice in half and then saute onione in a small amount of butter until crisp. Put onions in a greased baking dish. Combine the soup, the half and half cream, and salt and pepper. Pour this mixture on the opnions and then sprinkle the cheese on top the onions. Put the bread slices on top the mixture and brush the bread with the 1 1/2 Tbsp. of butter. Bake 350 degrees for 35 minutes.
From the Miami Herald. Vidalia onions are preferable but any large, sweet, mild onion will do.