Historical clue formulations

• Canned fuel used in making fondue — 2025-12-07
• Inedible jelly on a buffet table — 2023-01-12
• Fuel for a camp stove — 2021-10-17
• Buffet burner — 2019-02-16
• Buffet heater — 2017-09-03
• Portable heater — 2014-11-29
• Pink fuel — 2013-06-14
• Camper's canful — 2012-01-01
• Caterer's supply — 2011-02-17
• "Perfection under fire" product — 2010-12-25
• Jelly seen on buffet tables — 2008-02-15
• Catering aid — 2006-12-22
• Buffet table heater — 2005-10-11
• Cookout aid — 2005-08-28
• Camping fuel — 2005-07-27
• Caterer's aid — 2005-01-06
• Buffet warmer — 2004-07-18
• Caterer's heater — 2004-01-14
• Smorgasbord staple — 2003-09-20
• Caterer's heater — 2002-07-05
• Caterer's supply — 2000-12-24
• Buffet table staple — 2000-05-11
• Barbecue fuel — 1998-07-11
• Jelly used for fuel — 1997-03-31
• Fuel in a can — 1995-10-12
• Caterer's aid — 1995-10-06
• Caterer's food warmer — 1994-01-16