Historical clue formulations

• Cylindrical menu item — 2013-05-25
• It's stuffed in a restaurant — 2009-06-20
• Annual White House event — 2006-08-19
• Dim sum selection — 2004-07-31
• Popular appetizer — 2003-10-31
• White House Easter event — 2001-03-27
• Appetizer often eaten with the hands — 1998-10-25