31.   This sandwich is made of butter or mayonnaise and thinly sliced sweet onion.

32.   Walla Walla sweet onions trace their lineage to the island of Corsica, a French possession in the Mediterranean Sea near Italy.

33.   Walla Wallas are not the only sweet onions, and Corsican seeds are not the only source.

34.   While Georgia has trademarked the Vidalia name, consumers also have other choices for sweet onions.

35.   When no Vidalias are available, he brings in sweet onions from farther south, usually from Guatemala or Chile.